Answer:
4
Explanation:
three carbon atoms combined with six hydrogen atoms
It absorbs heat and give off thermal energy just saying i think its right
<u>Answer:</u> The correct option is enough solvent to make 1.00 L of solution
<u>Explanation:</u>
A solution consists of solute and solvent. A solute is defined as the component present in a smaller proportion while the solvent is defined as the component that is present in a larger proportion.
Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:
.......(1)
We are given:
Molarity of solution = 0.500 M
Moles of solute = 0.500 moles
Putting values in equation 1, we get:

Hence, the correct option is enough solvent to make 1.00 L of solution
16 is C
17 is E
18 is B
19 is A
20 is D
hope this helps :)