Which of the following are likely to form a covalent bond?
1. two gold atoms
2. two neon atoms
3. hydrogen and oxygen atoms
4. magnesium and bromine atoms

An occluded front moves over the farmland that has been experiencing drought conditions. what change in weather will this front likely bring? a. gray skies, but no rain b. an extended period of rain c. more dry air and sunny skies d. violent, short-lived thunderstorms

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

What is produced from neutralization of an acid and a base? a. hydronium ions b. citric acid c. salt and water