Help Mg + HCl  MgCl2 + H2

Double replacement – two compounds switch parts with one another.

AgNO3 + K2SO4  Ag2SO4 + KNO3

How can you increase the ability of a gas to dissolve in a liquids?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.