No one's even answering, so i'll just uh leave this here
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Answer:
answering what???
Explanation:
Answer:
I answered
Explanation:
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The diagram below shows different layers of sedimentary rocks.Picture showing seven layers of rocks of different colors labeled A, B, C, D, E, F, and G from top to bottom; A and B are parallel horizontal layers at the top of the diagram and C, D, E, F, and G are slanted layers with C closest to the surface and G at the bottom. Based on the diagram, which of these inferences is most likely correct? A.Layer A is older than Layer B. B.Layer C is older than Layer E. C.Layer F is younger than Layer D. D.Layer B is younger than Layer G.
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Out of the following given choices;
A. the size of the atoms in a substance
B. the number of molecules in a substance
C. the position of the electrons on the outer valence shells
D. the balance between intermolecular forces and kinetic energy
The answer is D. The kinetic energy of the molecules is determines by the temperatures of the substance. The higher the temperatures, the higher the kinetic energy of the molecules. The molecules subsequently move and collide with higher energies and overcome intermolecular forces. This allows the substance to changes state from solid to liquid and eventually to gas (with increasing kinetic energy).
This is important because by increasing or decreasing a substance's temperature, you are also adding or removing energy from it. And when a substantial amount of energy has been added or removed, a substance can change its state from solid > liquid > gas or the other way around.
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Final answer:
To find the molecular formula from the empirical formula, first calculate the empirical formula mass. Then, divide the molecular or molar mass by the empirical formula mass to find the number of empirical formula units per molecule. Finally, multiply the subscript of each element in the empirical formula by this number to get the molecular formula.
Explanation:
The process of finding the molecular formula from the empirical formula involves a few steps. First, you need to determine the empirical formula of a compound, which is the simplest positive integer ratio of atoms present in a compound. After you have the empirical formula, you can calculate the empirical formula mass by summing up the average atomic masses of all the atoms in the empirical formula.
Next, compare the compound's molecular or molar mass (which you should know or have been given) to the empirical formula mass. This comparison is done by dividing the molecular or molar mass by the empirical formula mass. This will give you the number of empirical formula units, denoted as n, per molecule of the compound.
The final step is to take the empirical formula and multiply the subscript of each element in it by n. This will give you the molecular formula of the compound.
Learn more about Finding Molecular Formula here:
#SPJ12
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Answer:
17
Explanation:
The number of elementary particles in the atom X = 52
The mass number of atom X = 35
The information required = The atomic number
The number elementary particles of the atom = The number of protons + The number of neutrons + The number of electrons
The mass number of an atom = The number of protons + The number of neutrons
∴ The number of electrons = The number elementary particles of the atom - The number elementary particles of the atom
The number of electrons = 52 - 35 = 17
In a neutral atom, the number of protons = The number of electrons = 17
The atomic number of atom, X = The number of protons in X = 17
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The balanced chemical equation that shows the reaction of NaOH with the diprotic acid H2SO4 is as follows:
2NaOH (aq) + H2SO4 (aq) → 2H2O (l) + Na2SO4 (aq)
BALANCEDCHEMICAL EQUATION:
- A chemical equation involves the coming together of two or more substances called reactants to give rise to new substances called products.
- According to this question, NaOH (sodium hydroxide) reacts with hydrogen sulphate (H2SO4) as represented in the chemical equation as follows:
- NaOH (aq) + H2SO4 (aq) → H2O (l) + Na2SO4 (aq)
- However, to balance the equation i.e. make the number of atoms of each element on both sides of the equation the same, we make use of coefficient 2 in front of NaOH and water.
- 2NaOH (aq) + H2SO4 (aq) → 2H2O (l) + Na2SO4 (aq)
Learn more at: brainly.com/question/21049751?referrer=searchResults
Answer:
Explanation:
it is a acid base reaction and this reaction is known as neutralization reaction and this reaction is exothermic .
Balanced chemical reaction:
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Calorimeter is used for calculating specific heat capacities of a substance.
We can use the calorimeter in order to compare the specific heat capacities of a substance because calorimeter is a device which is used for measuring the heat produced during a mechanical, electrical or chemical reaction. This device has the ability to calculate the heat capacity of materials.
The heat released from the sample is absorbed by the water, which results in an increase in temperature. This calorimeter detect this increase in temperature and provides us information so we can conclude that calorimeter is used for calculating specific heat capacities of a substance.
Learn more: brainly.com/question/284565