Jill is doing an experiment on the movement of pill bugs. She will place the pill bugs on flat surfaces covered with diffirent materials to see how the texture of each material affects the bugs movement. How can JIll use her imagination in this experiment?

A. To follow steps of the procedure precisely
B. To think of different kinds of materials used
C. To carefully record the results as they happen
D. To replicate another student's procedure exactly

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

What is the molar mass of potassium nitrate, kno3