Which of the following explains how all compounds are created? a. by the combination of an unlimited number of elements b. by creating and destroying protons of different atoms c. by the combinations of many atoms of the same element d. by losing, gaining, or sharing electrons between other atoms

Look at the reaction below: ca(hco3)2 --> caco3 + co2 + h2o first, balance the reaction. once balanced, use dimensional analysis or another method to find out how many moles of carbon dioxide will be produced if we start with 16.5 moles of calcium bicarbonate (calcium hydrogen carbonate). = mol of co2 number needs to be reported to three significant figures.

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction

Answer explain why it is not possible to deduce a complete order of reactivity.