Abeka Chemistry Test 1

A neutral gold atom has an atomic number of 70 and a mass number of 191, how many electrons does it have?

Express 2.903 times 10 to the third power

What is the chemical symbol for calcium?

The relative charge of an electron is

Convert 100.00 degrees Celsius to kelvins.

Every system left to itself will tend toward a condition of minimum potential energy and maximum entropy.

Which experiment led to the discover of the nucleus and the development of the planetary (nuclear) model of an atom?

The SI prefix for one hundredth

A neutral gold atom has an atomic number of 70 and a mass number of 191, how many protons does it have?

What term refers to energy that is possessed by matter due to its motion?

Elements that exist in nature as 2-atom molecules are known as ___ elements.

According to the rules for significant figures, the answer to the problem 47 times 2.031 - 95.457 should be rounded to

What adjective describes a chemical reaction in which the products have more potential energy than the reactants 

Which of the following is a homogeneous mixture?

The unit "u" is used to measure

Matter and energy may be neither created more destroyed, only converted from one form to the other.

What is the most abundant element in the universe

What identifies an atom as a given element?

The branch of science dealing with the study of the flow of energy is called

A positively charged ion is called a

Which of the following is a homogeneous mixture?

What is the chemical symbol for sodium?

The mass of an object per unit of volume is known as its

The SI prefix for one hundredth

Convert 500 mL to liters

A neutral gold atom has an atomic number of 70 and a mass number of 191, how many neutrons does it have?

Which of the following subatomic articles is NOT found in the nucleus of an atom?

The subatomic particle of an atom that has no electrical charge is the _____.

The randomness of a substance system is known as

Any substance composed of only one type of atom is called an

As the kinetic energy of a substance increases, the substance's temperature

The branch of chemistry dealing specifically with carbon and carbon compounds

What is the chemical symbol for sulfur?

Convert 68 degrees F to degrees Celsius

Which of the following has the smallest mass?

Convert 0.00314 to standard scientific notation

The temperature at which a substance changes from a liquid to a gas is called the ___ point.

The ratios of the masses of each element in a given compound are always the same, regardless of where it is obtained

A measure of force of gravity upon an object is

Substance is combustible is an example of a chemical property.

What is the chemical symbol for potassium?

Dissolving sugar in coffee is a chemical change

What is the chemical symbol for silver?

The _______ number represents the number of protons in an atom

The smallest particles into which a compound may be broken down without changing it into another substance are

The instrument used to determine the relative masses of atoms is the

Convert 5.2 m to cm

According to the rules for significant figures, the answer to the problem 7.81 plus 45.30 plus 60.0077 = 113.1177, round

What is the chemical symbol for carbon?

A group of two or more atoms linked together by chemical bonds is called a

The consistency of reproducible of a measurement is referred to as

What is Element 115?

Atoms that have the same number of protons but different numbers of neutrons are called

What is the chemical symbol for magnesium?

What is the chemical symbol for Nitrogen?