What does it mean for a substance to have a high reactivity?

Length is measured in

Which is the best description of a molecule? A molecule of an element is composed of at least two types of atoms. Amolecule of a compound is composed of only one type of atom. A molecule of a compould is composed of at least two types of atoms.

What is the units of heat energy and temperature

What effect does observing a substance's physical properties have on the substance

What are the components of the vector with a magnitude of 65.0 and a direction of 101.7°

Let's now apply our equations for the normal modes of open and closed pipes. On a day when the speed of sound is 345 m/s, the fundamental frequency of an open organ pipe is 690 Hz.

Suppose you are an observer standing on the Moon, looking back at Earth. If the moon is in the waxingquarter phase, what phase of the Earth would you see? A. waxing quarter B. full C. new D. waning quarter E. none; the Earth doesn't have phases

How many chromosomes will an elephant's sperm have?

Would the springs inside a bathroom scale be more compressed or less compressed if you weighed yourself in an elevator that was moving upward at constant velocity

tessa bought stock in a restaurant for $287.00 her stock is now worth $401.80 what is the percentage increase of the value of Tessa's stock?