How much CO2 is produced from the decomposition of 200g of CaCO3 if 112 of CaO are produced?

This man is using a block and tackle to lift a heavy bale of cotton. the block and tackle contains which simple machine?

What happen to the average kinetic energy of the remaining molecules as gaseous molecules evaporate from a liquid

Predict how the addition of hydrogen gas would affect the initial rate of the reaction below, and explain your prediction.

How would you find how many unpaired electrons are in a compound? Ex. unpaired electrons in aluminum in aluminum II oxide.

How many li are in 2.5 moles of li

Condensation requires? a) the removal of energy b) the absorption of energy. c) no energy change.

What is the species that determines the ph of a solution?

Echoderms contain a what similar to the kind that vertebrates have

Study the following unbalanced redox reaction. Which one of the following choices represents the balanced redox equation? PbS + O2→ PbO + SO2 PbS + 2O2→ PbO + 2SO2 2PbS + 2O2→ 2PbO + 2SO2 2PbS + 3O2→ 2PbO + 2SO2 3PbS + 3O2→ 2PbO + 2SO2

Arrange these gases in order of decreasing standard molar entropy: Rank from largest to smallest. Kr, Cl2, SO3