Answer A: CO2
Reason: carbon dioxides formula is CO and the number next to it is the molecules
Particles that are close together and locked in a place means its
a solid
sound wave cannot travel without a medium.
B. 1, 1, 1, 2
Explanation:
You only need to balance the NaNO3 on the right. Since there is 2 NO3 on the left, you need to put a 2 in front of the NaNO3 on the right. Everything else is already balanced so the only coefficient needed is 2 in front of the NaNO3.
