Coefficients should always:

A) be whole numbers

B) use the lowest possible ratios

C) use the values of 1, 2, 3, or 4

D) both choices a and b

An element is identified by: A. Its number of protons B. the atomic mass C. The type of charge D. its number of isotopes

What is the main source of energy in this forest ecosystem

What is the molar mass of nitrogen?

Inorganic chemicals: Select one: a. may be toxic to aquatic organisms, but are safe for human consumption. b. are easily degraded, or broken down, in the environment. c. are contaminants that contain carbon in addition to other elements. d.

Whats more metallic silicon sodium sulfur or thallium

In Flask A, you reacted 7.23 g Mg with 1.05 mol HCl. In Flask B, you reacted 1.22 g Mg with 1.35 mol HCl. Which balloon will inflate the most?

I have 2 electrons is the first shell, 8 in the second, and 6 in the third

The production of plastics makes life, so it benefits society. On the other hand, the production of plastics causes air and water, so it also harms society.

The total number of moles represented by 20 grams of CaCO3 is

Particles of matter how have both potential and kinetic energy is that true or false?