ICP Chem Review

A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together is called a(n)

• dipole
• Lewis structure
• chemical bond
• London force

When a solid produced by a chemical reaction separates from the solution it is called

• a precipitate
• a reactant
• a molecule
• the mass of the product

A chemical equation is balanced when the

• coefficients of the reactants equal the coefficients of the products
• same number of each kind of atom appears in the reactants and in the products
• products and reactants are the same chemicals
• subscripts of the reactants equal the subscripts of the products

How would oxygen be represented in the formula equation for the reaction of methane and oxygen to yield carbon dioxide and water?

• oxygen
• O
• O2
• O3

A chemical formula written over the arrow in a chemical equation signifies

• a by-product
• the formation of a gas
• a catalyst for the reaction
• an impurity

After the first steps in writing an equation, the equation is balanced by

• adjusting subscripts to the formula(s)
• adjusting coefficients to the smallest whole-number ratio
• changing the products formed
• making the number of reactants equal to the number of products

The equation A + X--> AX is the general equation for a

• synthesis(combination) reaction
• decomposition reaction
• combustion reaction
• single-displacement reaction

The equation AB + X--> BX + A is the general equation for a

• synthesis(combination) reaction
• decomposition reaction
• combustion reaction
• single-displacement reaction

The equation AX--> X + A is the general equation for a

• synthesis(combination) reaction
• decomposition reaction
• combustion reaction
• single-displacement reaction

In what kind of reaction does one element replace a similar element in a compound?

• displacement reaction
• combustion
• decomposition reaction
• ionic reaction