Two chemical reactions are shown: A. 2Mg + O2 -> 2MgO
B. CaCO3 -> CaO + CO2
Which statement is true? (5 points)
-Both are synthesis reactions.
-Both are decomposition reactions.
-A is a synthesis reaction, and B is a decomposition reaction.
-A is a decomposition reaction, and B is a synthesis reaction.

What is the formula that this ionic compounds could form sr2+p3-o2-

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

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