Matter that is composed of two or more different elements chemically combined in a fixed proportion is classified as

(1) a compound (3) a mixture

(2) an isotope (4) a solution

Water molecules are listed from a to b to c in

When a system performs work on the surroundings, the work is reported with a negative sign.

A 2.50 L sample of a gas at 1.00 atm is subjected to 1.25 atm of pressure at constant temperature. What is the new volume of the gas?

What kind of charge does a cation have

Planck's constant relates the Joules of energy absorbed/released by matter to the: A. atomic number of the element B. observed wavelength of light C. speed of light D. mass of the particulate matter

Reaction rates are affected by how often the particles collide true false

A 25 N and 5 N force pull to the right. Friction is 10 N. If the object is 5 kg, find the net force and acceleration.

What properties of matter are intensive independent of their size

What is the density of an object having a mass of 8.0g and a volume of 25cm3

What is a Cilla? (In drawing)