A chemical involved in a crime was found to contain 89.938 grams C and 10.063 grams H. If the Molar Mass of this chemical was 40.064g/mol calculate the molecular formula.

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.

Ab c or d ? i’m not sure what the answer is