If an atom has 8 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration?

In a basic solution A. concentration of OH - > concentration of H+. B. concentration of OH - < concentration of H+. C. concentration of OH - = concentration of H+. D. concentration of H + > concentration of OH-.

What can be said about an Endothermic reaction with a negative entropy change? The reaction isa. spontaneous at all temperatures. b. spontaneous at high temperatures. c. spontaneous at low temperatures. d.

Which event is endothermic? the burning of a match the change of water vapor to a liquid the combustion of propane gas the melting of ice?

Why can iron be broken down into atoms, but water can only be broken down to molecules?

How many atoms are in 35.1 g of sodium chloride (NaCl) ?

What is the chemical formula for gallium chlorine?

What three processes cause fireworks to emit light?

How many copper atoms are in a pure copper statue with a mass of 132 kg

Describe how jj thomson used the cathode ray tube to discover and evaluate the electron.

Type of ion formed by group 2A elements