The matter that travels through a wave is called the what of a wave?

One atom of silicon can properly be combined in a compound with a. two atoms of oxygen. b. three atoms of hydrogen. c. one atom of chlorine. d. four atoms of calcium.

A great deal of the Blue Ridge was eroded. The eroded rock eventually settled in Virginia's coastal plain. What process caused this?

4 - explicar as mudanças de estados fisicos da materia 6 - definir e exemplificar: -Ligações iônicas ou eletrovalente -Ligações covalentes ou molecular 7-definir substancias puras e suas clasificações 8-definir e exemplificar misturas homogeneas e

The half-life of radon-222 is 3.824 days. After what time will one-fourth of a given amount of radon-222 remain?

What is the electron structure of an oxygen atom? A.) 1s22s22p4 B.) 1s12s22p4 C.) 1s22s12p4 D.) 1s12s12p4

If the amount of atoms of each type on the left and right sides of a reaction differ, what must be done to balance it? A. It should be left alone B. Coefficients are placed in front of the reactants and/or products C.

All metals a melt at high temperatures b conduct heat and electricity c contain iron d react with air and water

Predict the following chemical formula for a compound between calcium and chlorine.

Two pieces of silk have an electric charge after being rubbed on a piece of amber. What will happen when the two silk pieces are brought close together? A. They will repel one another. B. They will attract one another. C.

The chemicals formula of glucose is c6h12o6. what are the names of the elements in glucose and how many atoms of each element are present in glucose molecules