. 2. Which has more atoms: 2.5 mol of calcium carbonate,

CaCO3, or 3.5 mol of calcium hydroxide, Ca(OH)2

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils