Which of the following happens during an endothermic chemical change? Heat is released. Net energy decreases. Products have a higher total potential energy than the reactants. Products have the same total potential energy as the reactants.

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.

What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced