How many moles are in 63 grams of water (H2O) ?

Can Chlorine be harmful to any of the earth's ecosystems? If so how?

Most reactions between an acid and a base form a salt and water. Which describes an acid-base reaction? A. synthesis B. decomposition C. double-replacement reaction D. single-replacement reaction

According to the collision theory, which is required for a high number of effective collisions?

When atoms react with each other to form compounds, which subatomic particles are important for determining the type of reaction that occurs?

If an element has 9 electrons, how many of them will be in the 2nd energy level?

Which of the following types of electromagnetic waves has a frequency greater than ultraviolet waves? A) X rays B) infrared waves C) microwaves D) visible light

For each metal complex give the coordination number for the metal species. m (nh34cl2

Particles in a liquid move around just as freely as particles in a solid. True or False

How did aristotles idea of matter differ from that of scientists

How does ease of oxidation correlate with activity? Do highly active metals tend to donate electrons or accept electrons from other metals?