Exam 12: Chemical Bonding

When sodium and chlorine react to form sodium chloride, an ionic compound,

An element that tends to gain electrons during chemical reactions is probably

Before it was found that when a substance burns, it is combining with oxygen, it was hypothesized that the burning material released a substance called ______________.

The ______________ of a compound is the sum of the atomic masses given in the formula of the compound.

Calculate the percentage composition by mass (to the nearest 0.1) of each element in sodium sulfide, Na₂S.

Which of the following compounds would be expected to be hard and brittle and to have a high melting point?

The Lewis symbol of which of the following elements has a single dot on each of the four sides of the element's symbol?

What is the formula of the compound formed from the ions of calcium and bromine?

How many covalent bonds would be formed by an atom of each of the following elements? a. C b. H c. F d. Ne

A solid solution of two or more metals is called a(n) ______________.

Calculate the percentage composition by mass (to the nearest 0.1) of each element in aspirin, C₉H₈O₄.

The Lewis symbol would be characteristic of which group?

Except for hydrogen and helium, atoms in chemical combination tend to have ______________ electrons in their outer shell.

What is the formula of a compound formed from the ions M²⁺ and X^3-?

Two atoms of hydrogen bond with an atom of oxygen to form a water molecule. This bonding is

The Lewis symbol •X• would be characteristic of which group?

The force responsible for chemical bonding is

When atoms of two elements with a great difference in electronegativity bond together, the bonding is probably

The formula for dry ice is _______________.

When forming covalent compounds, atoms ______________ electrons.