True or False:

1) A solution is made up of at least two substances

2) A solution must contain at least one liquid

3) The solvent in a solution may be solid

What are proper units for density for a solid, liquid or gas

Energy is converted from solar to chemical in Process A and then from one form of chemical to another in Process B. What is Process A best described as?

Ten students stand in a circle and are told to make a transverse wave. What best describes the motion of the students? Each student bumps the shoulder of his or her neighbor.

Isotopes of the same element have different A. positions on the periodic table. B. atomic numbers. C. mass numbers. D. elemental symbols User: One mole of copper equals how many atoms? A. 0.166 atoms B. 6.02 atoms C. 6.02 * 1023 atoms D. 1.

This Venn diagram is used to compare the products and reactants of a reaction of baking soda and vinegar. What could be put into the intersection? Precipitates Chemical compounds Solid compounds Gases

What would happen if you tried to sqeeze a gas into a smaller container?

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat