How does an exothermic change show that a chemical reaction occured?

Which term describes technology that operates on an atomic level? a) electromagnetic b) nanoscale c) biochemical d) invisible

What kind of intermolecular forces act between a hydrogen chloride molecule and a hydrogen iodide molecule?

How do erosion, nutrient depletion, and desertification damage or destroy soil?

What is a mountain system

7. What type of water pollution is produced from chemicals used to kill bugs and weeds?

Which statement describes a physical change? a. A carton of milk souring b. A piece of silver flatware tarnishing c. Dry ice subliming into carbon dioxide d. Two clear solutions forming a precipitate when mixed

What are two types of local winds?

For a given reaction, adding a catalyst increases the rate of the reaction by (1) providing an alternate reaction pathway that has a higher activation energy (2) providing an alternate reaction pathway that has a lower activation energy (3) using

An element which forms an oxide that dissolves in water to form an acidic solution.

Milk of magnesia is a base. What happens when you drink milk of magnesia for an upset stomach? A) It raises the pH of your stomach. Eliminate B) It lowers the pH of your stomach. C) It cleanses the stomach of harmful, painful bacteria.