2.approximately how much more rain fell in feb of 1990 then feb of 1989 A.2 inches
B.4 inches
C. 6 inches
D. Cannot determine using his graph

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .

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.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted