Chemical Reactions and LOC

Chemical Reactions and LOC

by Elizabeth Traylor

Multiple Choice

What does a subscript describe?

• the number of electrons

• the number of protons

• The number of atoms in a chemical formula

• the number of atoms in a molecule

Multiple Choice

What does the coefficient represent?

• The number of protons

• The number of elements

• the number of molecules

• The number of atoms in a chemcial equations

Multiple Choice

Which side of the equationcontains products?

• Left

• Right

Multiple Choice

Do elements, compounds, or both make up the reactants of a chemical equation?

• Elements

• Compounds

• Both

Multiple Choice

How are new substances made in the product side of the equation?

• created by the rearranging of atoms after a chemical reaction

• created by adding compounds to new compounds

Open Ended

Explain how cooking is a real world example that models how the atoms from the reactants rearrange and come together in different arrangements to form new substances.

Multiple Choice

What does the arrow represnt in a chemical reaction?

• a chemical reaction

• a product

• it does not represent anything

Multiple Choice

How can you prove that matter is being conserved in the equation shown?

• They're are more atoms on the reaction side

• Their are less atoms on the product side

• They are equal amounts of atoms on each side of the reaction