What is formed when two or more atoms join together chemically

According to the collision theory what two factors must be true to successfully result in a reaction

Which symbol represents a salt? C2H2 NaCl O2 C6H12O6

A certain gas occupies a volume of 26 L when the a plied pressure is 5.7 atm. Find the pressure in the system when the gas is compressed to a volume of 6.5 L at constant temperature.

Which elements are more stable in the D sublevel

Turn the word equation into a chemical balanced equation. Potassium chlorate breaks down into potassium chloride and oxygen gas

Hydrochloric acid is purchased in 12 molar concentrations. If I needed 200 ml of 2.0 molar HCl, how many milliliters of the concentrated solution would I need

Which of the following represents a chemical change? Bending a wire Freezing of water Fireworks exploding Melting of a wax candle

5.00 L of a gas is collected at 100K and then allowed to expand to 20.0 L. What must the new temperature be in order to maintain the same pressure? A. 400 °C B. 127 °C C. 223 °C D. 627°C

Before the initial explosion was the matter hot or cold

Which of the following atoms has seven valence electrons? chlorine (Cl) nitrogen (N) manganese (Mn) oxygen (O)