Final Review 18-19 (2)

Silicon is an example of a class of elements called ____________.

What are shared in a covalent bond?

In a chemical equation, the symbol “(aq)” indicates that the substance is__________.

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

The electrons involved in the formation of a chemical bond are called

the temperature at which a solid changes into a liquid

If a sealed syringe is plunged into cold water, in which direction will the syringe piston slide?

Which measurement contains three significant figures?

What grou of elements satisfies the octet rule without forming compounds

The best explanation as to why an atom is electrically neutral would be because __________.

A positive ion is known as a(n)

The most useful source of information about the elements is a

A chemical formula includes symbols of the elements and subscripts that indicate

The reaction 3 K + AlBr3® Al + 3 KBr is an example of a ____________ reaction

A chemical can be defined as

A whole number that appears in front of a formula in a chemical equation is called a

The direct change of a substance from a solid to a gas is called ____.

In the formula (NH4)2C2O4 ________.

Name the compound Al2S3.

vaporization at the surface of a liquid that is not boiling

When the name of an anion ends in -ite, the acid name includes the suffix ____.

The type of chemistry you studied this year was __________________.

a negatively charged subatomic particle

the central part of an atom, containing protons and neutrons

To the correct number of significant digits, 37.4 cm x 2.2 cm equals ________________.

An ato is

Express 0.00382 in scientific notation.

Name the compound Zn3(PO4)2.

The charge for an element in group 16 (VI A) would be __________.

Volume and pressure changes, at constant temperature have a relationship which is _____.

The equation A + X ® AX is the general equation for a(n)

conversion of a liquid to a gas below the boiling point

What is the formula for the compound formed by lead(II) ions and hydroxide ions?

The quantity expressed by cm3 is __________

Name the compound N2O3.

In the reaction 2KClO3(s) --> 2 KCl(aq) + 3O2(g), oxygen is a ________.

What does the Ideal gas law allow one to calculate that the other gas laws do not.

What is the formula for the compound formed by calcium ions and chloride ions?

If a balloon is squeezed, what happens to the pressure of the gas inside the balloon?

Which of the following is a binary acid?

In every balanced chemical equation, each side of the equation has the same number of ____.

The equation AX + BY ® AY + BX is the general equation for a

What are STP conditions?