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Molodets [167]
3 years ago
15

HELP NOW FIRST=BRANILYEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Which statement describes the difference between an atom of silver and an atom of gold?
A.
They have the same number of electrons.


B.
The atomic numbers are the same.


C.
Their atomic masses are different.


D.
They have exactly the same isotopes.
Chemistry
2 answers:
Oduvanchick [21]3 years ago
8 0

Answer:C

it's c easy..........

cestrela7 [59]3 years ago
3 0

Answer:

the answer is c. their atomic masses are different clearly because an atom of gold has 79 protons and the atom can be divided multiple times. An atom of silver has an atomic number of 47. 47 electrons. Clearly different. Hope it helps :)

Explanation:

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Quiz
Nookie1986 [14]

The correct option is C. Some of the absorbed energy is converted to potential energy and some is converted to kinetic energy

<u>Explanation:</u>

  • When a gas is heated, some of the molecules absorb enough energy to convert it into kinetic energy, which makes the molecules to move faster, collide with each other and also collide with the walls of the container.
  • But some of the molecule do not get required energy to convert it into kinetic energy, whereas it is converted into potential energy, energy possessed by a molecule due to its position.

Thus by considering this above explanation it is clear that Option C can be consider as the opt answer

5 0
4 years ago
State each of the following statement true or false? A. A carbon atom can form up to four covalent bonds. B. A carbon atom has s
VLD [36.1K]

Answer:

The answer to your question is below

Explanation:

A. A carbon atom can form up to four covalent bonds. True

B. A carbon atom has six electrons in its outermost shell. False, a  carbon atom only has 4 electrons in its outermost shell.

C. The bond between a carbon and hydrogen atom is a polar bond. True

D. Oxygen and nitrogen have a stronger electronegativity than carbon (e.g., a strong pull on a shared electron). True, carbon electronagativity is 2.55, while oxygen and nitrogen electronegativities are 3.44 and 3.04.

E. Bonds between carbon and other atoms are relatively unstable and readily dissociate, resulting in the formation of new molecules. False, carbon bonds are very stable.

F. The carbon backbone of a molecule is made up of a string of carbon atoms held together with either single or double bonds. True, carbon can form strings with single, double or triple bonds.

G. The carbon backbone of a molecule comes in a variety of shapes: linear, ring-like, or highly branched. True, carbon molecules can form a great variety of shapes.

H. Carbon is a relatively large atom allowing it to bind to more atoms than smaller atoms would, thereby making it more versatile. False, carbon atom is a small molecule.

7 0
4 years ago
Write the expression for the equilibrium constant Kp for the following reaction.Enclose pressures in parentheses and do NOT writ
maxonik [38]

<u>Answer:</u> The expression for K_p is written below.

<u>Explanation:</u>

Equilibrium constant in terms of partial pressure is defined as the ratio of partial pressures of the products and the reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

For a general chemical reaction:

aA+bB\rightleftharpoons cC+dD

The expression for K_p is written as:

K_p=\frac{P_{C}^c\times P_{D}^d}{P_{A}^a\times P_{B}^b}

The partial pressure for solids and liquids are taken as 1.

For the given chemical equation:

NH_4HS(s)\rightleftharpoons NH_3(g)+H_2S(g)

The expression for K_p for the following equation is:

K_p=\frac{(P NH_3)\times (P H_2S)}{(P NH_4HS)}

The partial pressure of NH_4HS will be 1 because it is solid.

So, the expression for K_p now becomes:

K_p=\frac{(P NH_3)\times (P H_2S)}{1}

Hence, the expression for K_p is written above.

5 0
4 years ago
What factor, according to the data in the table above, has the greatest impact on species loss?
Finger [1]
B. The area of the island is your answer :)
6 0
2 years ago
How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen?
Kobotan [32]

Answer:

Each sample has the same number of molecules.

Explanation:

This is true by Avogadro's law.

6 0
2 years ago
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