Consider the reaction: Mg + 2 HCI --> H2 + MgCl2 The rate of this reaction increases when more magnesium is added. This change is caused by the
addition of a catalyst
change in the nature of the reactants
increase in the concentration of the reactants
increase in the surface area of the reactants

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Freezing 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.

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?