If calcium carbonate is heated strongly, carbon diox- ide gas is driven off, leaving a residue of calcium ox-
ide. Write the unbalanced chemical equation for this
process.

helpp

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here