Chm112 Exam 1

Potassium – 40 undergoes, beta decay, becoming:

What is the formula of copper (II) sulfite?

A_____ make sure contain substances that may be preserved in different dated visually from one another

Chemistry is the study of:

Choose the correct molecular structure for CO2

I compounds formed from the complete transfer of electrons are

How many neutrons does 14 C have?

What is the name of the following covalent compound SF6

___ is the unequal distribution of electron density resulting in partial positive and negative regions around a molecule

What is the name of the following covalent compound CO

A____ is an experimental factor for which there is no expected response.

The substance in the ___ phase, has maximum interactions and no movement

The number of protons is also the atomic mass of the atom

OH^- is an example of a

In homogeneous mixtures, the substance;

When atoms share electrons to form compounds, their bonds are known as:

67.78 Kg is equal to ____ g

In naturally occurring elements, the number of protons and electrons are the same

The atom is composed of;

The isotope uranium – 235 has

Protons and neutrons can be found in:

The compound name lead oxide is not sufficient to describe the compound because;

The number of neutrons in an atom of an element may vary.

The metal alloy brass is a composed of unbound atoms of copper and zinc, therefore it is a:

Calculate the product of 0.0123 x 0.100 x 4.56 x 7.8

What is the compound name for SnO?

Compounds are composed of:

Atoms cannot be transformed into other atoms in a chemical reaction.

The significant figures in the following numbers, 23.4, 0.00,1123, 0.010, 450.

What is the density of a substance that has a measure of mass of 2.34 g and a volume of 56.7 cm^3

The metric units for mass, volume, and length are:

Two major classifications of matter are mixtures, and ____

Three critical activities of the scientific method are observing, hypothesizing, and ________.

Neutrons:

Given that 1 in = 2.54 cm and 1 ft is 12 in, how many meters is in 5 ft and 8 in?

Calculate 34.5 x 67.89 x 1.2 =

Atoms can be transferred into other atoms in a chemical reaction

What is the correct name for Ca(OH)2

__ is a measure of the pull for shared electrons in a bond

Mixtures can be separated into pure substances by simple physical means. e.g. boiling

0.00345 L is equal to ___ mL

Atoms except for H, and He, must have ____ electrons in their valance

Sodium chloride is an example of a(n):

In order to reject the bill hypothesis the ___ must be less than 0.05

The atomic mass of an element is the:

To separate pure substances, lead compounds into atoms, or rearrange items into compounds, you need: