Which best represents a reaction mechanism?
a → a
a + b→ reactants
a + b → = products
a + a → =a + a

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide