Chemistry

A catalyst

If the temperature at which the reaction occurs increases the number of collisions

The mass number of an element is

When bonding potassium donates and electron and fluorine takes and electron.  Which is formed?

Isotopes of an atom have

In the Reaction CO₂ + 2LiOH --> Li₂CO₃ + H₂O the 2 in front of 2LiOH is referred to as

Which of the following is a physical change in matter

Ca + S --> CaS is an example of a(n)

He is credited for the first experimental model of the atom

State in which the forward and reverse reactions balance because they take place at equal rates

Which of the following is a metal

Which of the following is a chemical change of matter

This important element contains 26 electrons and rusts in the presence of air and moisture. 

What is the correct name for the compound P₂Cl₄

Ionic bond formation takes place due to the interaction between

Reaction in which the atoms of one element replace the atoms of another element in a compound

An incomplete combustion reaction gives off

A particle that has mass nearly equal to that of a proton, but carries no electrical charge

The law of conservation of mass states that during a chemical reaction, total mass is

The study of quantity relationships in a chemical reaction is

Hydrocarbons contain only

A chemical composition of two or more different elements joined together in fixed proportions

Which of the following factors does not affect the rate of the reaction

What is the formula of calcium bromide?

A row on the periodic table is called a(n)

One mole of a substance is equal to

How many valence electrons are present in silicon

The arrangement of electrons in an atom is called the

The electron configuration of Na is [Ne]3s¹ and chlorine is [Ne] 3s²3p⁵.  What is the formula?

Which of the following properties of matter can be explained on a subatomic level

Chemistry is a natural science that deals with the study of

What is the formula for the compound made of Aluminum and Sulfate ions (SO₄)^2-

What is indicated by a large Keq

What is the correct name for  CH₃CH=CHCH₂CH₃

The atomic number of an element is

Neutral atoms contain equal numbers of

Cyclohexane is an example of

What is the correct name for the structure CH₃CH₂CH₂CH₂CH₃

A chemical reaction in which two or more substances react to produce a single product is called

A covalent bond is formed when two atoms

In the reaction described by the equation Sodium + Water --> Sodium Hydroxide + Hydrogen Gas

Which statement best describes an element

The alkali metals are located on the periodic table in group

How many electrons does an atom generally need in its outer energy level to be stable

A chemical reaction in which oxygen combines with a substance and releases energy as heat is

Which element has the ground state electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁶

An Aluminum atom with 13 protons and 15 neutrons is written correctly as

When a chemical bond is formed, the atoms aquire the valence electron configuration of a(n)

As you go down the periodic table, that atomic radius

The maximum number of electrons in the s energy level is