2 years ago

Which of the following is an example of a compound? CaCl2 Na Nd Cu

Chemistry

1 answer:

madam [21]2 years ago

5 0

CaCl2

All of the other choices are elements

You might be interested in

When a reaction has reached equilibrium... A. Q = K B. The rate of the forward reaction and the rate of the reverse reaction are

grin007 [14]

Answer:

The correct answer is option A.

Explanation:

Equilibrium is a state when rate of forward reaction is equal to the rate of backward reaction. The concentration of reactants and products becomes constant at this state.

The ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric coefficients is termed as Equilibrium constant. It is denoted by $K_{eq}$ .

aA + bB $\rightleftharpoons$ cC

$K_{eq}=\frac{[C]^c}{[A]^a[B]^b}$

4 0

2 years ago

How do I get an atomic mass

ahrayia [7]

To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons.

3 0

2 years ago

4. The type of thermal energy transfer that heats our homes is called

andrew-mc [135]

Answer:

conduction is the answer

6 0

2 years ago

Energy from the sun travels to the earth through

julia-pushkina [17]

Answer:

D. Infrared Radiation

I hope this helps.

8 0

2 years ago

Please, please someone answer. Chem isn't my strong suit.

Yuki888 [10]

U-238 has 92 protons, 146 neutrons, and 92 electrons.
Rn-222 has 86 protons, 136 neutrons, and 86 electrons.

U-238 is Uranium 238 and Rn-222 is Radon 222.

5 0

2 years ago