Only when there is no product that is when a chemical reaction has not occured
Answer:
diamond is denser because it is more tightly packed than coal
Answer:
4.33 L
Explanation:
Step 1: Given data
Initial volume of the balloon (V₁): 3.00 L
Initial pressure of the balloon (P₁): 765 torr
Final volume of the balloon (V₂): ?
Final pressure of the balloon (P₂): 530 torr
Step 2: Calculate the final volume of the balloon
If we consider Helium to behave as an ideal gas, we can calculate the final volume of the balloon using Boyle's law.

The answer is dissolved in water, because in chemistry, (aq) is shorthand for aqueous solution.