Answer:
Minimizing repulsion by maximizing the bond angles
Explanation:
VSEPR is defined as 'valence shell electron pair repulsion' theory. The key principle is that repulsion of adjacent lone pairs of electrons or the electrons that are shared within a bond creates bond angles.
The bond angles are maximized in order to minimize the repulsion in the most stable geometrical shape of the molecule.
That said, in VSEPR theory we tend to achieve the greatest possible angles between the bonds and lone pair electrons in order to obtain the lowest repulsion between them.
13. During photosynthesis, carbon dioxide and water combine according to the general
equation:
Energy
Carbon Dioxide + Water Sugar + Oxygen
Why is photosynthesis a chemical reaction?
A because new substances are formed
B. because an input of energy is required
C. because the reactants are compounds
D. because the products include an element
Cray, metallic zinc filings were added to a heaker of dilute hydrochloric acid in a fume hond.
Answer:
C bc it is
Explanation:
C IS GOOD ANSWER
The photosynthesis is a chemical reaction because the reactants are compounds. Hence option C is correct.
What is chemical reaction?Chemical reaction is defined as a procedure that results in the chemical conversion of one group of chemicals into another. Reactants are substances that are present at the beginning of a chemical reaction. A substance that remains after a chemical reaction is complete is known as a product.
Photosynthesis is defined as the method used by plants, algae, and some microorganisms to produce sugar and oxygen from sunlight, carbon dioxide, and water. It is a process that only happens in plants that contain the chlorophyll, a green pigment used in food preparation. Photosynthesis is primarily used to convert solar energy into chemical energy, which is then stored for use at a later time.
Thus, the photosynthesis is a chemical reaction because the reactants are compounds. Hence option C is correct.
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80cm^3 of oxygen gas diffused through a porous hole in 50 seconds how long wiil it take 120cm^3 of nitrogen (iv) oxide to diffuse through the same hole at the same conditions ?
Answer: it will take 89.93secs
Explanation:Please see attachment for explanation
Through which of the following ways can heat be transferred?
A.
by direct or indirect contact between objects at different temperatures
B.
only by direct contact between objects at different temperatures
C.
Heat can never be transferred between objects.
D.
only by indirect contact between objects at different temperatures
Answer:
The correct option is:
A) by direct or indirect contact between objects at different temperatures
Explanation:
Heat can be transferred in three different methods:
Conduction, Convection and Radiation
Conduction is heat transfer through direct contact between substances at different temperatures.
Convection is the heat transfer which takes place through air currents.
Radiation is the heat transfer that does not require contact between two objects.
Hence, heat transfer can take place through direct or indirect contact between objects at different temperatures.
What is the name of the part of a plant cell where water and sunlight are used ?
Answer:
Chloroplasts
Explanation:
Chloroplasts is an organelle found only in plants and eukaryotic algae that captures sunlight and converts that energy into food.
Answer:
chloroplasts
Explanation:
i searched this
Select the best answer for the question.
13. Which statement accurately describes the relationship between mass and weight?
A. An object with twice the mass of another object will weigh twice as much
B. An object with twice the mass of another object will weigh four times as much.
C. An object with twice the mass of another object will weigh half as much.
OD. An object with twice the mass of another object will weigh one-fourth as much.
Mark for review (Will be highlighted on the review page)
Answer: the correct option is A.
Explanation:
Weight = Mass X Acceleration due to gravity(10m/s2)
If A has a mass of 4Kg and the mass of B is twice that of A. Then their weight will be :
For A:
W = 4 x 10 = 40N
For B:
Mas of B is two times that of A i.e
2 x 4 = 8kg
W = 8 x 10 = 80N
Comparing the weight of A and B it is clear that the weight of B is also twice the weight of A
Assume you have 28.0 grams of nitrogen and 5.0 grams of hydrogen what is the limiting reactant
Answer:
Hydrogen is the limiting reagent.
Explanation:
Limiting Reagent : It is the substance that get consumed when the reaction complete. It is used to determine the what amount of product will be formed.
When [tex]H_{2}[/tex] and [tex]N_{2}[/tex] react, it will produce
[tex]NH_{3}[/tex] gas . The balance reaction can be written as:\
[tex]N_{2}(g) + 3H_{2}(g) \rightarrow 2NH_{3}(g)[/tex]
Here, 1 mol [tex]N_{2}[/tex] require 3 mol [tex]H_{2}[/tex]
In question ,
[tex]moles = \frac{given\ mass}{Molar\ mass} [/tex]
Molar mass of H2 = 2 g/mol , given mass = 5 g
[tex]moles\ of\ H_{2} = \frac{5}{2}[/tex]
[tex] H_{2}[/tex] = 2.5 mole
[tex]moles\ of\ N_{2} = \frac{28}{28}[/tex]
Molar mass of N2 = 28 g/mol , given mass = 28 g
[tex] N_{2}[/tex] = 1 mole
Since, 1 mole [tex]N_{2}[/tex] require 3 mole [tex]H_{2}[/tex]
But available , mole of [tex]H_{2}[/tex] = 2.5
So we need extra 0.5 moles of Hydrogen gas
Hence [tex]H_{2}[/tex] get consumed first , Thus Hydrogen is the limiting reagent
Help I need to turn this in!! What is A for CIO3-, the chlorate ion?
Answer:
A = is for central atom = Cl = 1
N = is the total number of lone pair of electron = 2
Explanation:
AXN for ClO3- is
A = 1 = 1 Cl
X = 3 ( X = the number of particles attached = O3 = 3 )
N = 1 lone pair of electron
The value for A, which is the chemical compound CIO⁻₃ for the chlorate ion is 24.
How to solve for ATo find A, we add the number of valence electrons contributed by each atom:
A = Valence electrons of Cl + Valence electrons of O + Charge of the ion
A = 7 + 18 + (-1) (since the chlorate ion has a charge of -1)
A = 7 + 18 - 1
A = 24
The A value for the chemical compound CIO⁻₃ a chlorate ion is given as 24
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Which of the following statements is true?
Protons have negative charges.
A piece of gold is made only of gold atoms.
All molecules are compounds.
Compounds have the same properties as the elements they are made from
Answer:
Below.
Explanation:
True:
A piece of gold is made only of gold atoms.
Untrue:
Protons have negative charges ( they are positive).
All molecules are compounds . (Oxygen gas O2 is a molecule but not a compound as the 2 atoms are the same).
Compounds have the same properties as the elements they are made from.
What was the total number of calories lost when 10 grams of water at 80c is cooled to 60c?
Answer:
Q = -200 cal
Explanation:
Given data:
Calories lost = ?
Mass of water = 10 g
Initial temperature = 80°C
Final temperature = 60°C
Solution:
Specific heat capacity of water is 1 cal/g.°C
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = T2 - T1
ΔT = 60°C- 80°C
ΔT = -20°C
Q = m.c. ΔT
Q = 10 g. 1 cal/g.°C. -20°C
Q = -200 cal
C2H4O2 + NaC2H3O2 + H2O + CO2 list the reactants in this chemical reaction
Answer:
C₂H₄O₂ and NaC₂H₃O₂ are reactants.
Explanation:
Word equation:
Acetic acid + sodium acetate → sodium diacetate
Chemical equation:
C₂H₄O₂ + NaC₂H₃O₂ → C₄H₇NaO₄
This is a synthesis reaction in which simple reactants combine to form complex product.
This is also balanced chemical equation because there are equal number of atoms of all elements on both side of equation. Thus it follow the law of conservation of mass.
Law of conservation of mass:
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
This law was given by french chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
According to the following position vs. Time graph the bicyclist was
A) moving at a constant speed for the first 2 seconds, then began to speed.
B) not moving for the first 2 seconds, then begin moving and continue to gain speed.
C) slowing down for the first two seconds, then begin moving at a constant speed.
D) not moving for the first two seconds, then begin moving at the constant speed.
Answer:
According to the following position vs. Time graph the bicyclist was : D
D. Not moving for the first two seconds, then begin moving at the constant speed.
Explanation:
[tex]Speed = \frac{Distance}{time}[/tex]
Along Y-axis = Distance in meters
Along X-axis = Time taken in second
For first 2 seconds the The object has not changed its position.There is Zero distance covered.So , Speed = 0After 2 second,The Object changed the distance by equal amount in equal interval of time.(Uniform Speed).Hence at each point after 2 second, there is same value speedDo liquids expand when they freeze
Answer:
most liquids do expand when they freeze
Explanation:
water is actually one that expands and there are probably many more too
i hope this helps you
Final answer:
Water expands when it freezes, which could cause up to 30% of cells to burst in frozen human bodies, thereby posing significant challenges to the concept of cryopreservation. This expansion force also necessitates antifreeze in engines and causes pipes to burst if they freeze.
Explanation:
Most liquids typically contract when they freeze, but water is an exception to this rule. Water expands by about 9% when it freezes, which can lead to significant damage in biological cells. This occurs because ice crystals grow as water solidifies, leading to an increased volume. If human bodies were to be preserved by freezing, the same force that can fracture boulders and engine blocks would cause up to 30% of cells to burst. Consequently, when considering the possibility of preserving human bodies for future revival, extensive cell damage due to the expansion of water upon freezing poses a considerable challenge.
This expansion of water upon freezing underpins the need for antifreeze in engines and the prevention of pipe bursts during cold weather. Furthermore, the unique property of water expanding instead of contracting upon freezing allows ice to float, creating an insulating layer on bodies of water that preserves aquatic life in colder environments.
what is -6+2x=-10 I need to no
Answer:
x=-8
Explanation:
First you move the -6 over to the -10 (which makes the -6 a 6)
Then you solve -10+6=-4
Then do -4 times 2 which equals 8
HOPE THIS HELPS
The volume of gas is 250mL at 355kPa. What will the volume be when the pressure is reduced to 76.0kPa?
Answer:
V₂ = 1167.8 mL
Explanation:
Given data:
Initial Volume of gas = 250 mL
Initial Pressure = 355 KPa
Final pressure = 76.0 Kpa
Final volume = ?
Solution:
P₁V₁ = P₂ V₂
V₁ = Initial volume
P₁ = Initial Pressure
V₂ = Final volume
P₂ = Final Pressure
Now we will put the values in formula.
P₁V₁ = P₂ V₂
V₂ = P₁V₁ / P₂
V₂ = 355 KPa 250 mL / 76.0 Kpa
V₂ = 88750 mL / 76.0
V₂ = 1167.8 mL
HELP! Can two different species occupy the same niche at the same time? Why or why not?
A. Yes, but they would eventually evolve into one species.
B. No, they would compete for all necessary resources.
C. Yes, as there are always some small differences.
D. No, as they will both go extinct.
Answer:
The correct option is B ) No, they would compete for all necessary resources.
Explanation:
In ecology, a niche can be described as the role that an organism plays in a community or ecosystem. The niche of a species describes what food a particular organism eats, the place it lives, the place it reproduces and the relationship it has with other organisms of the community.
If two species belong to the same niche at a time, then they will fight for resources between them. As a result, one of the species will have to move from the place. One of the species might become get killed due to competition. Hence, two different species cannot belong to the same niche at a time.
In the reaction N2 + 3H2 → 2NH3, what is the mole ratio of hydrogen to nitrogen?
Answer: The mole ratio of hydrogen to nitrogen is 3 mole: 1 mole, 3:1
Explanation:
•Mole ratios are determined using the coefficients of the substances in the balanced chemical equation. •Each coefficient represents the number of mole of each substance in the chemical reaction.
•The mole ratio can be determined by first writing out a balanced chemical equation for the reaction.
For this reaction the balanced chemical equation is
N2(g) + 3H2(g) ----> 2NH3(g)
1mol:3mol : 2mol
From the equation we can see that 1 mole of N2(g) reacts with 3 moles of H2(g) or 3 moles of H2(g) react with 1 mole of N2(g) to produce 2 moles of NH3(g).
Therefore, the mole ratio of hydrogen to nitrogen is 3 mole: 1 mole, 3:1
The mole ratio of hydrogen to nitrogen is. 3:1
In the balanced chemical equation [tex]\( \text{N}_2 + 3\text{H}_2 \rightarrow 2\text{NH}_3 \),[/tex] the coefficients represent the stoichiometric amounts of each substance involved in the reaction. The coefficient of [tex]\( \text{N}_2 \)[/tex] is 1, indicating that 1 mole of nitrogen reacts. The coefficient of [tex]\( \text{H}_2 \)[/tex] is 3, indicating that 3 moles of hydrogen react.
To determine the mole ratio of hydrogen to nitrogen, we compare these coefficients directly. The mole ratio of hydrogen x[tex]\( \text{H}_2 \)[/tex] to nitrogen [tex](\( \text{N}_2 \))[/tex] in the reaction [tex]\( \text{N}_2 + 3\text{H}_2 \rightarrow 2\text{NH}_3 \)[/tex] is [tex]\( \frac{3 \text{ moles H}_2}{1 \text{ mole N}_2} \)[/tex], simplifying to [tex]\( \\3:1} \).[/tex]This ratio shows that for every 1 mole of nitrogen consumed, 3 moles of hydrogen are required according to the stoichiometry of the reacti
.
4. Which of the following is a pseudo-noble-gas electron configuration?
O A 1s22s22p3s23p%3d10
OB 1s22s22p63s23p6
OC 1s22s22p63s2305
OD 1s22s²2p63s23d10452
Final answer:
Option A represents a pseudo-noble-gas electron configuration because it has a filled d-subshell along with filled s and p subshells in the highest principal energy level, resembling noble gas stability.
Explanation:
The question 'Which of the following is a pseudo-noble-gas electron configuration?' refers to a special type of electron configuration where an atom has a filled d-subshell in addition to filled s and p subshells in its highest principal energy level, mimicking the stability of a noble gas configuration without actually having a complete octet in the valence shell.
Option A (1s22s22p63s23p63d10) is indeed a pseudo-noble-gas electron configuration because the d sublevel is completely filled along with the s and p sublevels of the third energy level. However, this type of configuration is often seen in cations of transition metals, where the atom has more d-electrons and has lost the ns electrons.
This configuration imitates the stability of a noble-gas, but does not conform to the 'octet rule', as it has 18 electrons in the outermost shell instead of 8, thus it is called a 'pseudo-noble-gas' configuration.
How is thermal energy transferred from Earth's core?
Through the absorption of water heated by the sun
Through convection that takes place in the atmosphere
Through conduction from magma to water and rocks
Through the sun's radiation that heats the ground
Answer:
Through conduction from magma to water and rocks
Explanation:
The core of the Earth is extremely hot, just about 10,800 °F or 6,000 °C. The heat from the core is then transferred to the magma, which heats up the rocks and water through convection. When the magma is heated up, it tends to rise and it heats up the water deep in the ocean and the rocks in the lithosphere. The water also brings in the warmth through convection.
Note: The other choices also show how thermal energy is transferred from the sun and not the Earth's core.
Answer: it's c, give the other person brainliest for that highly coveted crown
Explanation:
-
69. A 1 mol sample of gas has a temp of 225K, a vol of 3.3L, and a pressure of 2000 torr
What would be the temperature if the amount of
stant while pressure
drops to 900 torr and volume to 2.75L?
2
co
20
s
C
Answer:
T₂ = 84.375 K
Explanation:
Given data:
Initial volume = 3.3 L
Initial pressure = 2000 torr
Initial temperature = 225 K
Final temperature = ?
Final volume = 2.75 L
Final pressure = 900 torr
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
P₁V₁/T₁ = P₂V₂/T₂
T₂ = P₂V₂ T₁ /P₁V₁
T₂ = 900 torr× 2.75 L× 225 K / 2000 torr×3.3 L
T₂ = 556875 K/ 6600
T₂ = 84.375 K
Kaley is trying to determine how music affects the growth of plants. She hypothesizes that classical music will cause a plant to grow at a higher rate than no music or rap music. She grows nine tomato plants in similar lighting, temperature, and soil. Three are exposed to classical music 24 hours a day, three are exposed to rap music 24 hours a day, and three are grown in complete silence. Kaley measures the growth of the plants every day and finds that the plants all seem to have the same rate of growth. What is missing from Kaley's scientific investigation?
Answer:
As the description in the question shows, Kaley is taking careful and regular measurements. Hence, her experimental method is correct.
Kaley has also developed a hypothesis and the experiment she conducted is also valid hence there is no problem in these steps.
There is no mistake being done by her in depicting the results of the experiment.
Hence, the only thing which we can say is missing from the experiment is the past researches which scientists might have made on this topic.
Explanation:
What is the approximate wavelength of visible light?
(A) 7 × 10 –7 m
(B) 7 m
(C) 1 × 10 7 m
(D) 70 m
Answer:
its answer A....that's the answer is
[tex]7 \times 10 ^ - 7[/tex]
Explanation:
The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. Essentially, that equates to the colors the human eye can see. It ranges in wavelength from approximately 400 nanometers (4 x 10 -7 m, which is violet) to 700 nm (7 x 10-7 m, which is red).
Answer: it’s A
Explanation:
how many atoms of oxygen are in 4.6 grams of copper sulfate
Answer:
m(CuSO4×5H2O)=424.0 g
M(CuSO4×5H2O)=249.68 g/mol
n=m/M
n(CuSO4×5H2O)=1.7 mol
There are 9 atoms of oxygen in each formula unit of CuSO4×5H2O. Therefore,
n(O)=8.5 mol
M(O)=16 g/mol
m=M×n
m(O)=135.6 g
Explanation:
Solid crystals with _____ bonds are the best insulators. metallic covalent ionic hydrogen
Answer: covalent bond
Explanation: covalent bonded compounds do not conduct electricity. Hence, they are used as insulators
Why do some chemical reactions occur?
Answer:
Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products
Chemical reactions occur when atoms in reactants form new products, leading to changes in energy and entropy. Factors like temperature, concentration, and the use of catalysts influence the rate and spontaneity of reactions.
Chemical reactions transpire when atoms in the reactants rearrange their chemical bonds to form products. This rearrangement leads to a change in total energy, as the new bonds have different energy levels compared to the original bonds in the reactants. There are several reasons and conditions under which chemical reactions occur:
Energy Changes: All chemical reactions involve changes in energy. Reactions may either absorb energy (endothermic) or release energy (exothermic), and these energy changes can be a driving force for the reaction to occur.Entropy: Another driving force for chemical reactions is entropy, which is essentially the measure of disorder within a system. Reactions may occur to increase entropy.Reaction Rates: Conditions like temperature, concentration of reactants, and the presence of catalysts can affect the rate at which reactions occur. Higher temperatures and concentrations generally increase reaction rates, while catalysts lower the activation energy needed for the reaction to take place.Spontaneity and Activation Energy: Some reactions occur spontaneously due to favorable energy and entropy conditions while others require the input of energy to overcome an energy barrier known as activation energy.In summary, chemical reactions occur due to the reorganization of atoms to form more stable or favorable products, driven by changes in energy and entropy and influenced by various factors that affect reaction rates.
What is the oxidation state of S in so ??
Answer:
+2
Explanation:
If a compound [tex]SO[/tex] existed, we would identify the oxidation state of sulfur using the following logic:
oxygen is more electronegative than sulfur, so it's more electron-withdrawing and it should have a negative oxidation state producing a positive oxidation state for sulfur;oxygen typically has an oxidation state of -2;we may then apply the fact that SO is expected to be a molecule with a net charge of 0;if the net charge is 0 and the oxidation state of oxygen is -2, we may set the oxidation state of S to x;write the equation for the net charge of 0 by adding all individual charges of the two atoms: [tex]x + (-2) = 0[/tex];hence, x = 2.That said, in this hypothetical compound S would have an oxidation state of +2.
I NEED HELP! IDK IF IT’S C or D?????
Answer:
option D : when ΔH is positive and ΔS isnegative
Explanation:
The answer will be explained by the following equation for the gibbs free energy
G = H - TS
Where
G = gibbs free energy
H = enthalpy of a system (heat
T = temperature
S = entropy
So the change in the gibbs free energy at constant temperature can be written as
ΔG = ΔH - TΔS . . . . . . (1)
Where
ΔG = Change in gibbs free energy
ΔH = Change in enthalpy of a system
ΔS = Change in entropy
During a spontaneous reaction the energy given in the form of heat that is ΔH or spontaneous due to disorder of the system that is ΔS are the driving forces of gibbs free energy.
Gibbs free energy is a state function and the change in gibbs free energy is equal to the change in enthalpy minus product of temperature and change in entropy as shown in equation 1
ΔG = ΔH - TΔS . . . . . . (1)
From the above equation it is obvious that ΔG will be positive for any reaction for which ΔH is positive and ΔS is negative. when ΔG is positive the reaction will be non spontaneous and unfavorable.
So,
option D is correct: when ΔH is positive and ΔS is negative
9.(02.02 MC)
Ben wrote the following examples of changes in substances.
Example A: Vegetables are chopped.
Example B: Food is broken up into simpler form during digestion.
Which statement is correct? (1 point)
Both are examples of physical changes
Both are examples of chemical changes
Example A describes a physical change and Example B describes a chemical change.
Example A describes a chemical change and Example B describes a physical change
Answer:
Example A describes a physical change and Example B describes a chemical change.
Explanation:
Physical Change
The changes that occur only due to change in shape or physical properties but their chemical or internal composition remain unchanged.
These changes were reversible.
They have same chemical property.
These changes can be observed with naked eye.
Example :
Vegetables are chopped and converted into smaller pieces the composition remain same. It is physical change.
Water converting to Ice
Water converting to gas
In this water molecule remain the same only they rearrange themselves that change its state of mater not composition
Chemical change:
The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.
These changes are irreversible
These changes occur due to chemical reactions
These may not be observed with naked eye
Example:
Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood
Boiling of egg: that change the chemical composition of protein in the egg .
Food is broken up into simpler form during digestion and convert into the energy and particles which are different from original compound .
Answer:
Example A describes a physical change and Example B describes a chemical change.
Explanation:
PLEASE HELP.
A charged particle in an accelerated motion produces EM radiation.
In an atom the electrons have accelerated motion.Does it means that all electrons in atoms produce EM wave???
Answer:
Yes. all the accelerating charged electron particles produces the Electromagnetic wave.
Explanation:
Magnetic fields are produced during the movement of the charged particle. the magnetic field produced, will exert some force in the moving charges. The electric field as well as the magnetic field travelling in the empty space with respect of speed of light are the electromagnetic wave. Moving electron will always produce the magnetic field and thus the electrons motion are constant,but when the acceleration starts the electromagnetic waves are being radiated.
16. What is the percent composition of a compound that contains 36.03 g of C and 8.06 of H
Answer:
The percentage composition of the compound is 81.72% of C and 18.28% of H.
Explanation: Percentage composition is the percentage by mass of each element in a compound. It is the ratio of an amount of each element to the total amount of individual elements in a compound, which is then multiplied with 100.
Since the compound above contains only carbon and hydrogen, we will have to find the sum of their masses.
Given 36.03g of Carbon and 8.06g of hydrogen,
36.03g + 8.06g = 44.09g of the compound
%composition= gram of element/gram of compound × 100
%C = 36.03/44.09 × 100
%C= 0.8172 × 100
℅C= 81.72%
Likewise for H
%H= 8.06/44.09 × 100
%H= 0.1828 × 100
%H= 18.28%
Therefore, the compound can be said to contain 81.72% of C and 18.28% of H
Which element would have properties characteristic of both a metal and a nonmetal
Answer:
Examples: Si, B, Ge, Sb, Ga
Explanation:
The majority of elements in the periodic table are classified as either a metal (a species that can lose electrons to become a cation) or a non-metal (a species that can gain electrons to become an anion).
However, there are several atoms which are considered to be metalloids. Metalloids are elements which possess properties that resemble both metals and non-metals. Examples of metalloids would be: silicon (Si), boron (B), germanium (Ge), antimony (Sb), gallium (Ga).
Since metalloids have properties of both metals and non-metals, they are widely used in semiconductors, as they might both donate and accept electrons in their shells.
A metalloid is an element that exhibits properties characteristic of both metals and nonmetals. Examples include boron, silicon, and germanium. They are often semiconductors, exhibiting physical properties of metals and chemical properties of nonmetals.
Explanation:A metalloid is an element that possesses properties characteristic of both metals and nonmetals. This group includes elements like boron, silicon, and germanium, among others. Metalloids are often semiconductors, meaning they conduct heat and electricity better than nonmetals but not as well as metals. Some exhibit specific physical properties of metals, like being shiny and malleable, while concurrently displaying chemical properties of nonmetals, such as being bad conductors of heat and electricity in their pure forms.
For example, boron (from Group 13 of the periodic table) is a metalloid. While it tends to form covalent bonds like nonmetals, it also exhibits semiconducting properties. Additionally, the oxides and hydroxides of certain members of Group 13 (like aluminum and gallium) can exhibit both acidic and basic behaviors, which is characteristic of both nonmetals and metals.
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