What is the conversion of 160g to cg??

The answer is C.CCl2F2.

Answer: Option (a) is the correct answer.

Explanation:

When a fat contains high proportion of fatty acid molecules which have no double bonds then it is known as a saturated fat.

For example, animal fats are mostly saturated.

Fats which are solid at room temperature are known as solid fats. Butter, beef fat etc are all solid at room temperature. Most of the animal food gives solid fats.

Thus, we can conclude that saturated fat is most likely a solid at room temperature.

Saturated fats are the most likely to be solid at room temperature.

In chemistry, fats are classified as saturated or unsaturated based on their chemical structure and characteristics. Saturated fats are most likely to be solid at room temperature. They have single bonds between carbon atoms and are saturated with hydrogen atoms. An example of a saturated fat that is solid at room temperature is butter.

On the other hand, unsaturated fats have one or more double bonds between carbon atoms, which causes them to have a liquid consistency at room temperature. Examples of unsaturated fats include vegetable oils and olive oil.

To summarize, the fat most likely to be solid at room temperature is a saturated fat.

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Answer:

Granite

Explanation:

Fossil is a well preserved remains  or traces of plant and animals. Fossil are found in various kind of rock. Usually in rocks that can create the necessary environment to conserve life. Rocks that has vital nutrient and conducive environment to nurture life contain fossils.  

Granite is the only rocks least likely among the option that can harbor life and invariably contain fossil due to the mode of formation. Granite is an intrusive igneous rocks . Granite is formed from a molten liquid called magma .This magma solidify below the earth surface to form granite. The temperature were this rock form is usually high and it rarely support life. Plant and animal cannot strife in the kind of environment that  produce granite because of the temperature therefore if this creature cannot live their, the remains can hardly be found.

Generally, granite cannot preserve fossils.

Answer:

2 (two) atoms of iron

Explanation:

There are 2 iron atoms in the representation 2Fe. If the it indicates 2 moles of Fe, then it contains 1.2 × 10²⁴ atoms.

Iron is 26th element in periodic table. It is classified into the d-block and is called a transition metal. The chemical symbol of iron is Fe. Fe is a good conductor both thermally and electrically and it is widely used in daily life and in industries.

The number of atoms in one mole of an element is 6.02 × 10²³ . This number is called Avogadri number. Hence one mole of every element contains Avogadro number of its atoms.

Thus, if 2 Fe represents 2 moles of Fe, then its number of atoms is :

2 ×6.02 × 10²³ =  1.2 × 10²⁴ atoms

If it just represent 2 atoms of Fe, then are just 2 Fe atoms.

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Answer: A)  polar molecule  

Explanation: Polar molecules are molecules which contain atoms of different electronegativities.

Non polar molecules are molecules which contains atoms of same electronegativities.

Water is a polar covalent molecule formed by unequal sharing of electrons. Oxygen being more electronegative tend to keep the electron pair towards itself thus generating a partial negative charge. The hydrogen acquire a partial positive charge thus resulting in a polar molecule.

The bent shape is due to repulsion between lone pairs and bond pairs of electrons.

Answer: 3.19x10*8

Explanation:

D. Carbohydrates

This is the fourth macro-molecule being described.

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Answer:

A phospholipid has a charged head and an uncharged tail

Explanation:

because

Answer:

The correct answer is option C, that is, congo red that changes from red to violet around a pH of 5.0.

Explanation:

Congo red refers to the sodium salt of benzidinediazo-bis-1-naphthylamine-4 sulfonic acid. It is a diazo dye, which is blue in acid solution and red in alkaline solution and is used mainly as a biological stain and as an indicator. Congo red is an indicator, which is red at pH 5.0, and blue-violet at pH 3.0. In microscopy and histology, Congo red has an application for staining in amyloidosis, for the outer membrane of Gram-negative bacteria, and for the cell walls of plants and fungi.

your answer is hydrogen bond.

Final answer:

apply Gay-Lussac's law (P1/T1 = P2/T2). Given P1 = 210 kPa and T1 = 120 K, the final pressure at T2 = 150 K is 262.5 kPa.

Explanation:

The student's question involves finding the final pressure of a gas after a temperature change, applying the Gay-Lussac's law, which states that the pressure of a gas is directly proportional to its absolute temperature when the volume is kept constant. To solve this, we use the formula P1/T1 = P2/T2, where P1 and T1 are the initial pressure and temperature, and P2 and T2 are the final pressure and temperature.

Given:
P1 = 210 kPa (initial pressure)
T1 = 120 K (initial temperature)
T2 = 150 K (final temperature)
P2 is unknown (final pressure)
The formula rearranges to P2 = P1 × (T2/T1).

Step-by-step calculation:
P2 = 210 kPa × (150 K / 120 K)
P2 = 210 kPa × 1.25
P2 = 262.5 kPa
The final pressure of the gas at 150 K is 262.5 kPa.

In a chemical reaction, if the temperature changes, it means that energy was transferred.

In a chemical reaction, if the temperature changes, it means that energy was transferred. This is because chemical reactions involve the breaking and formation of chemical bonds, which requires energy.

For example, when a chemical reaction releases energy, the surroundings absorb that energy and the temperature of the surroundings increases. On the other hand, if a chemical reaction absorbs energy, the surroundings lose energy and the temperature of the surroundings decreases.

Therefore, the correct answer is B. Energy was transferred.

In the particular experiment, each student uses 8.5 cm of ribbon.

The total length of the Mg ribbon present is 570 cm

so to find how many students can use the ribbon

number of students = total length of the ribbon / length each student uses

number of students = 570 cm / 8.5 cm/student = 67. 1 students

since it should be a whole number it should be 67

therefore 67 students can use the ribbon

Final answer:

The differences in the heights of the mercury and water columns in barometers are attributed to their different densities and the way atmospheric pressure influences them, with mercury's much higher density allowing for a shorter and more practical barometer design. Atmospheric pressure at sea level supports a mercury column of approximately 760 mm high.

Explanation:

The difference in the heights of the mercury and water columns in barometers is primarily due to their different densities. Mercury is much denser than water, about 13.6 times more so. This significant difference in density means that a mercury barometer can be much shorter than a water barometer to measure the same atmospheric pressure. Atmospheric pressure at sea level supports a mercury column of approximately 760 mm high, which is a standard measurement. However, for water, because it is less dense, the corresponding column needs to be over 10 meters high.

The heights of these columns also vary with altitude. For instance, at higher altitudes like Denver, Colorado, or the summit of Mt. Everest, the mercury column does not rise as high due to the decrease in atmospheric pressure. Hydrostatic pressure, the pressure exerted by a fluid due to gravity, plays a crucial role in how these barometers work. Hence, using mercury allows for a more practical and manageable barometer design.

The difference in the heights of mercury and water columns in a barometer is primarily due to variations in density between the two liquids. A barometer measures atmospheric pressure by balancing the weight of a column of liquid against the atmospheric pressure pushing down on the liquid's surface.

Mercury, a dense liquid metal, is commonly used in barometers due to its high density. The greater density of mercury compared to water means that a shorter column of mercury can exert the same pressure as a taller column of water.

The relationship between pressure, density, and height in a fluid column is described by the hydrostatic pressure equation: [tex]\(P = \rho \cdot g \cdot h\), where \(P\)[/tex] is pressure, [tex]\(\rho\)[/tex] is density, (g) is the acceleration due to gravity, and (h) is the height of the fluid column.

Because mercury has a higher density than water, a smaller height (h) of mercury is needed to balance the atmospheric pressure. In contrast, water requires a taller column to generate the same pressure due to its lower density.

In summary, the difference in height between the mercury and water columns in a barometer is a result of the varying densities of the two liquids, where the denser mercury requires a shorter column to balance atmospheric pressure compared to the less dense water.

The question probable may be:

What is the primary reason for the difference in height between mercury and water columns in a barometer, and how does the hydrostatic pressure equation explain this phenomenon?

Eukaryotic cells have specialized structures called organelles within the cytoplasm, such as mitochondria, ribosomes, and the cytoskeleton, each performing specific functions vital to the cell's life.

The structures within the cytoplasm of a eukaryotic cell are called organelles. These membrane-bound structures are responsible for carrying out specific functions essential to the cell's life. For instance, ribosomes, which consist of a 60S and a 40S subunit that join to form an 80S ribosome during protein synthesis, are responsible for synthesizing proteins.

Eukaryotic cells contain organelles like mitochondria, which produce energy for the cell; endoplasmic reticulum, which synthesizes proteins and lipids; the Golgi apparatus, which modifies and packages proteins and lipids; vacuoles and lysosomes, which are involved in storage and waste disposal. Additionally, chloroplasts are key to photosynthesis in plant cells. These organelles are held together by a cytoskeleton made up of microtubules, actin micofilaments, and intermediate filaments, providing shape and enabling cellular movement and division.

A closed loop through which current can flow is called a circuit. It comprises conductors and usually includes components like resistors, which limit the flow of electric charge. Understanding electric circuits is key to using and designing electronic devices.

A closed loop through which current can flow is called a circuit. This closed path is provided by conductors, such as metal wires, which connect a load to the terminals of a battery. The load can be a variety of devices, and it is generally represented as a zigzag symbol in circuit diagrams, which signifies a resistor. The resistor is a component that limits the flow of electric charge, and if multiple resistors are present, they affect the total or equivalent resistance of the circuit. A short circuit, on the other hand, is a low-resistance path directly between the terminals of a power source, which can bypass the intended circuitry and potentially cause damage.

Electric circuits are fundamental to modern electrical devices and systems. By understanding how circuits function and how components like resistors influence the flow of current, we can effectively design and troubleshoot these electric pathways.

Final answer:

A closed loop through which current can flow is called a circuit, which consists of a complete pathway for electricity enabled by conductors that connect components in a closed loop, often represented in schematics by specific symbols.

Explanation:

A closed loop through which current can flow is called a circuit. In the context of electrical engineering and physics, a circuit typically consists of conductors such as metal wires, which supply a path for electric current to flow. These conductors connect a voltage source, like a battery, to various elements like resistors, which regulate the flow of electric current. The battery is indicated by parallel lines, while the resistor is denoted by a zigzag symbol in schematic diagrams.

It's essential to understand that a circuit provides a complete, enclosed path for electricity to move. Without this closed path, current cannot flow effectively and the circuit would be considered 'open'. Electric circuits are the foundations upon which all modern electronic appliances operate, guiding electric charge through different components to perform work or relay information.

Final answer:

The chemical process associated with the lattice energy for sodium chloride is represented by the reaction: NaCl(s) → Na+(g) + Cl-(g), highlighting the energy required to separate the ionic solid into gaseous ions.

Explanation:

The chemical process associated with the lattice energy for sodium chloride is the breakdown of solid NaCl in its constituent ions in the gas phase. The correct representation of this process is NaCl(s) → Na+(g) + Cl−(g). Lattice energy is a key concept in understanding the strength of the ionic bonds within a crystalline solid. It can be considered as the energy required to separate one mole of a solid ionic compound into its gaseous ions, which is an endothermic process. The lattice energy of sodium chloride (NaCl) is significant because it helps to explain the high melting and boiling points of ionic compounds, indicating strong interionic attractions within the lattice structure.

1.6 moles of phosphorus (P) will form approximately 113.6 grams of tetraphosphorus decoxide (P4O10) when reacting with oxygen.

Phosphorus (P) has a molar mass of 31 g/mol, and the compound formed, tetraphosphorus decoxide (P4O10), has a molar mass of 284 g/mol.

You have 1.6 moles of phosphorus. In the balanced chemical equation, P8 + 5O2 --> 2P4O10, we can see that 1 mole of P8 produces 2 moles of P4O10. Since one P8 consists of 8 P atoms, this means that 8 moles of P forms 2 moles of P4O10. A simple cross-multiplication gives us that 1.6 moles of P form 0.4 moles of P4O10.

To translate this to grams, we know that one mole of P4O10 is 284 grams. Multiplying 0.4 moles with the molar mass of P4O10, we get that 1.6 moles of P form approximately 113.6 grams of P4O10.

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The answer is:

2C₂H₂ + 5O₂ → 4CO₂ + 2H₂O

In chemistry, the equation of a reaction or chemical equation is that the symbolic writing of a reaction. The statement of the reagent is written to the left of the equation and so the statement of the merchandise is written to the proper. The coefficient written to the left of a statement could be a stoichiometric coefficient, which describes the quantity of that substance involved in an exceeding reaction relative to a different substance. The reaction equation was first made by the iatrochemist Jean Beguin in 1615. in an exceeding reaction equation, reagents and products are connected by different symbols. The symbol → is employed for one-way reactions, ⇆ for two-way reactions, and ⇌ equilibrium reactions.

The reaction might be an action that always produces interchange of chemical compounds. The initial compounds or compounds involved within the reaction are called reactants. Chemical reactions are usually characterized by chemical changes and can produce one or more products that typically have different characteristics from reactants. Classically, chemical reactions involve changes involving the movement of electrons within the formation and breaking of chemical bonds, although the final concept of chemical reactions can even be applied to the transformation of elementary particles like in nuclear reactions.

Chemical compounds are pure chemicals that encompass two or several elements that will be lessened into its constituent elements by chemical reactions. as an example, dihydrogen monoxide (water, H2O) could be a compound consisting of two hydrogen atoms for every oxygen atom. Generally, this comparison must be fixed thanks to its physical nature, not a comparison made by humans. Therefore, materials like brass, YBCO superconductors, "aluminum gallium arsenide" semiconductors, or chocolate are considered mixtures or alloys, not compounds. The characteristic of compounds is the presence of chemical formulas. The statement provides a ratio of atoms in an exceeding substance, and therefore the number of atoms in an exceedingly single-molecule (therefore the statement of ethene is C2H4 and not CH2. The statement doesn't specify whether the compound consists of molecules; as an example, binary compound (table salt, NaCl) could be a compound ionic.

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Details

Grade: High School

Subject: Chemistry

keywords: chemical equation

Answer : The correct option is Acid.

Explanation :

Therefore, the acid is a substance which accepts an electron-pair.

In the periodic table, group 17  contains an element that is liquid at standard temperature and pressure.

Periodic table is a tabular arrangement of elements in the form of a table. In the periodic table, elements are arranged according to the modern periodic law which states that the properties of elements are a periodic function of their atomic numbers.

It is called as periodic because properties repeat after regular intervals of atomic numbers . It is a tabular arrangement consisting of seven horizontal rows called periods and eighteen vertical columns called groups.

Elements present in the same group have same number of valence electrons and hence have similar properties while elements present in the same period show gradual variation in properties due to addition of one electron for each successive element in a period.

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