Recall the formula of glucose is c 6 h 12 o 6 . how many carbon, oxygen, and hydrogen atoms will you need for three glucose molecules

The amount of product formed in a reaction is determined by the limiting reactant.

The amount of product formed in a reaction is determined by the limiting reactant. The limiting reactant is the reactant that is completely consumed in a reaction, thus limiting the amount of product that can be formed. Let's say we have a reaction between hydrogen gas and oxygen gas to form water. If we have 4 moles of hydrogen and 2 moles of oxygen, the balanced chemical equation tells us that we need 2 moles of hydrogen for every 1 mole of oxygen. Since we have only 2 moles of oxygen, it will be completely consumed and we will only be able to form 4 moles of water, even though we have excess hydrogen.

Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. Therefore, red color of visible light has the longest wavelength. The correct option is option B.

Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave, light wave.

There is a relation between frequency of wave, and wavelength of wave

Mathematically,

ν =c÷λ

where,

ν =frequency of light

c is speed of light

λ is the wavelength of light

Red color of visible light has the longest wavelength.

Therefore, red color of visible light has the longest wavelength. The correct option is option B.

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The fractional abundance of the magnesium isotope with 12 neutrons, Mg-24, is 78.70%.

The question revolves around calculating the fractional abundance of magnesium isotopes. The given atomic mass is a weighted average of the isotopes based on their natural abundance. Since magnesium has isotopes with mass numbers of 24, 25, and 26, you would use the following equation to find the fractional abundance of Mg-24 (which has 12 neutrons):

Atomic mass = (Fractional abundance of Mg-24 x Mass of Mg-24) + (Fractional abundance of Mg-25 x Mass of Mg-25) + (Fractional abundance of Mg-26 x Mass of Mg-26)

Since the question seeks the fractional abundance of the isotope with 12 neutrons (Mg-24), and we are given that Mg-24 comprises 78.70% of magnesium atoms, it means that the fractional abundance of Mg-24 is 0.787 or 78.70%.

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Answer : The oxidation state of nitrogen in [tex]LiNO_3[/tex] is, (+5)

Explanation :

Rules for the oxidation numbers :

The given compound is, [tex]LiNO_3[/tex]

Let the oxidation state of 'N' be, 'x'

[tex](+1)+x+3(-2)=0\\\\x=+5[/tex]

Hence, the oxidation state of N is, (+5)

The oxidation state of N in [tex]{\text{LiN}}{{\text{O}}_3}[/tex]is [tex]\boxed{ + 5}[/tex]

Further Explanation:

Redox reaction:

It is a type of chemical reaction in which the oxidation states of atoms are changed. In this reaction, both reduction and oxidation are carried out at the same time. Such reactions are characterized by the transfer of electrons between the species involved in the reaction.

The process of gain of electrons or the decrease in the oxidation state of the atom is called reduction while that of loss of electrons or the increase in the oxidation number is known as oxidation. In redox reactions, one species lose electrons and the other species gain electrons. The species that lose electrons and itself gets oxidized is called as a reductant or reducing agent. The species that gains electrons and gets reduced is known as an oxidant or oxidizing agent. The presence of a redox pair or redox couple is a must for the redox reaction.

The general representation of a redox reaction is,

[tex]{\text{X}}+{\text{Y}}\to{{\text{X}}^+}+{{\text{Y}}^-}[/tex]

The oxidation half-reaction can be written as:

[tex]{\text{X}}\to{{\text{X}}^+}+{e^-}[/tex]

The reduction half-reaction can be written as:

[tex]{\text{Y}}+{e^-}\to{{\text{Y}}^-}[/tex]

Here, X is getting oxidized and its oxidation state changes from [tex]0[/tex]to +1 whereas B is getting reduced and its oxidation state changes from 0 to -1. Hence, X acts as the reducing agent whereas Y is an oxidizing agent.

Rules to calculate the oxidation states of elements:

1. The oxidation number of a free element is always zero.

2. The oxidation number of oxygen is generally taken as -2, except for peroxides.

3. The oxidation state of hydrogen is normally taken as +1.

4. The sum of oxidation numbers of all the elements present in a neutral compound is zero.

5. The oxidation numbers of group 1 and group 2 elements are +1 and +2 respectively.

The oxidation state of O is -2 and the oxidation state of Li is +1.

The expression to calculate the oxidation state in [tex]{\text{LiN}}{{\text{O}}_3}[/tex]is:

[tex]\left[ {1\left( {{\text{oxidation state of Li}}} \right) + 1\left( {{\text{oxidation state of N}}} \right) + 3\left( {{\text{oxidation state of O}}} \right)} \right] = 0[/tex]      …… (1)

Rearrange equation (1) for the oxidation state of N.

[tex]{\text{Oxidation state of N}} = \left[ { - 1\left( {{\text{oxidation state of Li}}} \right) - 3\left( {{\text{oxidation state of O}}} \right)} \right][/tex]          …… (2)  

Substitute -2 for the oxidation [tex]{\text{state}}[/tex] of O and +1 for the oxidation state of Li in equation (2).

[tex]\begin{aligned}{\text{Oxidation state}}\;{\text{of N}}&=\left[{-1\left({{\text{+1}}}\right)-3\left({-{\text{2}}}\right)}\right]\\&=\left[{-1+6}\right]\\&=+5\\\end{aligned}[/tex]

Therefore the oxidation state of N in [tex]{\mathbf{LiN}}{{\mathbf{O}}_{\mathbf{3}}}[/tex] is +5.

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1. What is the oxidation state of phosphorus in [tex]{\text{PO}}_3^{3-}[/tex] ion? https://brainly.com/question/3059040

2. Determine the oxidation state of Cl in [tex]{\text{NaCl}}{{\text{O}}_{\text{3}}}[/tex]: https://brainly.com/question/1869644

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Redox reactions

Keywords: redox reaction, N, LiNO3, oxidation, reduction, reductant, oxidant, reducing agent, oxidizing agent, electrons, redox pair, redox couple, oxidation state, oxidized, reduced, simultaneously, +5, -2, +1, Li, O.

The rate of change in elevation for Mount Zembat in Alaska is 0.05 feet per year, calculated by dividing the total change in elevation, 2 feet, over the 40-year period.

To calculate the rate of change in elevation for Mount Zembat in Alaska, we take the difference in elevation over the time period and divide it by the number of years. Forty years ago, the mountain was measured at 7600 feet, and today it is measured at 7598 feet. Therefore, the elevation has decreased by 2 feet over 40 years.

The rate of change per year is calculated as follows:

Rate of change = (Initial elevation - Current elevation) / Time

Rate of change = (7600 feet - 7598 feet) / 40 years

Rate of change = 2 feet / 40 years

Rate of change = 0.05 feet per year

So, the rate of change in elevation for Mount Zembat is 0.05 feet per year.

When sugar is mixed with water, equilibrium is reached when the rate of sugar dissolving in water equals the rate of sugar crystallizing or precipitating out of the solution.

This dynamic state of equilibrium is governed by the principles of solubility and saturation. Initially, when sugar is added to water, it dissolves as sugar molecules break apart and become surrounded by water molecules, forming a solution. As more sugar is added, the concentration of sugar in the solution increases until it reaches a point where no more sugar can be dissolved; this is called the saturation point.

At this stage, the rate of dissolution equals the rate of crystallization, resulting in a stable equilibrium where the concentration of dissolved sugar remains constant. The temperature and other factors can influence the equilibrium point, as changes in these conditions may shift the balance between dissolution and crystallization.

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The following laboratory tools can be used to handle small objects or chemicals;

- forceps; the forceps is used in the lab to grab or pick up small objects that are either hot of dangerous to hold with the bare hands

- disposable pipette; these are usually made of plastic, they ere used to move around liquid substances from one container to another.

- crucible; this tool is used to melt small quantities of liquid or solid substances.

- test tube; this tool is used to store small quantities of chemicals.

- micropipette; this is used to take measurement of small quantities of liquids.

- spatula; a spatula is used to move little quantities of solid around

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The natural sources of water pollution are algae blooms. Therefore, option C is correct.

Water contamination is the tainting of bodies of water, typically as a result of human activity, which has a detrimental impact on their uses. Aquifers, reservoirs, lakes, rivers, seas, and groundwater are all examples of bodies of water. When contaminants are introduced into these water bodies, water contamination results.

The main causes of water pollution are bacteria, viruses, parasites, insecticides, pharmaceuticals, plastics, feces, radioactive materials, fertilizers, and pesticides. These compounds are frequently invisible contaminants, since they do not always alter the color of the water.

The Industrial Revolution of the middle of the 19th century brought forth remarkable technological advancements, as well as new sources of air and water pollution. The repercussions of these developments started to be seen over the world by the middle of the 20th century.

Thus, option C is correct.

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Answer:

Algae Blooms

Explanation:

There are 10 electrons in an ion of fluorine.

Explanation:

Given:

The fluorine ion with 9 protons and a charge of -1.

To find:

The number of electrons in fluorine ion.

Solution

The atomic number of fluorine = 9

Atomic number = Number of protons

Number of proton in fluorine atom = 9

In a neutral atom of fluorine equal numbers of protons and electrons are there.

Number of electrons in fluorine atom = 9

Charge on fluorine atom =-1

Number of electrons in fluorine ion = 9 +1 = 10

There are 10 electrons in an ion of fluorine.

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Chemical sedimentary rock and detrital sedimentary rock differ in terms of their formation and composition.

Chemical sedimentary rock and detrital sedimentary rock are different in terms of how they form and their composition. Chemical sedimentary rocks are formed when dissolved minerals in water precipitate and solidify. Examples of chemical sedimentary rocks include limestone and rock salt. On the other hand, detrital sedimentary rocks are formed from the accumulation and lithification of fragments of other rocks. Examples of detrital sedimentary rocks include sandstone and shale.

It's the electrons of an atom that determine its chemical properties. Electrons participate in chemical reactions—and it's these electron interactions that govern the atom's chemistry. For instance, chlorine's reactions stem from its desire to gain an extra electron.

Although the nucleus of an atom is indeed very important, it is the electrons of the atom that ultimately determine its chemical properties. This is because electrons involve in the chemical reactions.

In order for any chemical reaction to occur, there must be a movement, exchange or sharing of the electrons between two or more atoms. It's these electron interactions that govern the chemistry of the atom, hence determining its chemical properties.

For example, chlorine (Cl) has 7 electrons in its outermost shell and would prefer to gain an additional electron to achieve a complete outer shell. This electron 'hunger' is what fuels chlorine's reactions with other elements and compounds, thus determining its chemical properties.

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The correct name for the molecular compound with chemical formula N₂S₄ is dinitrogen tetrasulfide.

Chemical  formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols  of elements. It also makes use of brackets and subscripts.

Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form  is called empirical formula.

It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.

There are four types of chemical formula:

1)empirical formula

2) structural formula

3)condensed formula

4)molecular formula

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Answer: Single displacement

Explanation:

A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution. Thus one element should be different from another element.

A general single displacement reaction can be represented as :

[tex]A+BC\rightarrow AC+B[/tex]

Thus if A is more reactive than b, then A can displace B from its position and can combine with C to give AC and B.

Given:A hockey player has the puck in the corner of the rink. An opposing player muscles him aside and emerges with the puck. Thus it is similar to single displacement reaction.

the answer is C 159.7g Fe2O3/1 mol Fe2 O3

When writing the conversion factor for the molar mass of Fe2O3, it will be written as:

The molar mass of a substance is the mass of one mole of that substance.

The molar mass of of iron oxide (Fe2O3) is 159.7 g/mol.

This means that 1 mole of iron oxide (Fe2O3) has a mass of 159.7 g.

Therefore, in writing the conversion factor, it will be written as:

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Answer:

The Answer is E

Explanation:

Got it right on the test.

Answer:

Sodium chloride.

Explanation:

The organic compounds are compounds of carbon. They may have some other atoms like hydrogen, oxygen, sulfur, nitrogen, halogens etc. However the skeleton is of carbon only.

The simplest organic compound is methane (which is a hydrocarbon).

Sucrose is a disaccharide of glucose and fructose. It is an organic compound.

Urea is NH₂CONH₂, again an organic compound.

While Sodium chloride is NaCl, which has no carbon and it is an ionic inorganic compound.

Answer is C – Unsaturated fat.

Fats are large molecules basically made from a combination of glycerol and three chains of fatty acids. Usually fats consist of C, H and O. According to the C – C bond, there are two types of fats as saturated fats and unsaturated fats. Saturated fats have only C – C single bonds and all C atoms are sp³ hybridized atoms. But in unsaturated fats other than C – C single bonds there are C – C double bonds. Hence, both sp³ and sp² hybridized C atoms can be seen.

The atomic nucleus does not contain electrons, which are the negatively charged subatomic particles that orbit the nucleus. Protons and neutrons, carrying positive and no charge respectively, are the ones that make up the nucleus.

The atomic nucleus does not contain electrons, which are negatively charged subatomic particles. The nucleus is a positively charged region consisting of protons, which have a positive electric charge, and neutrons, which are neutral. Electrons are instead located outside the nucleus, moving through the mostly empty space that makes up the rest of the atom. These subatomic particles—protons, neutrons, and electrons—are bound by forces that define the structure of the atom. The arrangement of these particles explains why the nucleus itself carries a net positive charge, balanced by the negative charge of the electrons that orbit around it.

Answer : The volume of propane required are, 23.29 L

Solution : Given,

Mass of water = 75 g

Molar mass of water = 18 g/mole

First we have to calculate the moles of water.

[tex]\text{Moles of water}=\frac{\text{Mass of water}}{\text{Molar mass of water}}=\frac{75g}{18g/mole}=4.16moles[/tex]

Now we have to calculate the moles of propane.

The balanced chemical reaction will be,

[tex]C_3H_8+5O_2\rightarrow 4H_2O+3CO_2[/tex]

From the reaction, we conclude that

As, 4 moles of water produces from 1 mole of propane

So, 4.16 moles of water produces from [tex]\frac{4.16}{4}=1.04[/tex] mole of propane

Now we have to calculate the volume of propane.

As, 1 mole of propane contains 22.4 L volume of propane gas

So, 1.04 mole of propane contains [tex]22.4L\times 1.04=23.29L[/tex] volume of propane gas

Therefore, the volume of propane required are, 23.29 L