Students in a science classroom were given two vials. One vial contained a mixture and the other vial contained a pure substance. What is the main difference between a mixture and a pure substance.

Chemical engineers who specialize in negotiating for large purchases and instructing customers in use of the products are: A. corporate managers B. legal services C. marketing personnel D. product developers

White light shines on a piece of paper whose atoms are capable of absorbing orange, indigo, violet, yellow, red, blue, and green. What color is the paper?

Which property of gases is explained by the process of diffusion?

A physical property of a solid used to describe its surface

What fraction of a 0.5 m acetic acid solution will be in the protonated form at ph 5.1? The pka of acetic acid is 4.8?

Which of the following is an appropriate food storage method

Why should your disposal of excess magnesium take place in a fume hood? (choose all that apply) Group of answer choices The quench released hydrogen gas, which is flammable and explosive The quench is highly exothermic and might cause the solvent to

For the chemical equation SO2 (g) + NO2 (g) SO3 (g) + NO (g) SO2 (g) the equilibrium constant at a certain temperature is 3.00. At this temperature, calculate the number of moles of NO2 (g) that must be added to 2.30 mol SO2 (g) in order to form 1.

What Happens To The Energy That Does Not Come Into Contact With The Bottom Of My Pan? Topic: Energy

What state of matter has a definite shape but indefinite volume?