Chemistry Quiz 2

Question 1

An atom or group of atoms that is positively or negatively charged as a result of gaining or losing electrons.

Answer 1

“ION”

Question 2

Positively charged IONs

Answer 2

“Cation”

Question 3

Negatively charged IONs

Answer 3

“Anions”

Question 4

The connection that forms a result of attraction between positively and negatively charged ions.

Answer 4

“Ionic Bonding”

Question 5

The process by which an atom or molecule gains a positive or negative by losing or gaining electrons.

Answer 5

“Ionization”

Question 6

Compounds that form as a result of positive or negative ions being held together by an ionic bond.

Answer 6

“Ionic Compounds”

Question 7

A group of ions that carry a charge.

Answer 7

“Polyatomic ION”

Question 8

Compounds formed when atoms are connected by covalent bonds.

Answer 8

“Covalent Compounds”

Question 9

The sharing of electrons between two atoms.

Answer 9

“Covalent Bonds”

Question 10

particles that consist of two or more atoms joined together.

Answer 10

“Molecules”

Question 11

The sum of the atomic weights of the atoms in the molecule.

Answer 11

“Molecular Weight”

Question 12

A pair of valence electrons that are not shared with another atom.

Answer 12

“Lone Pairs”

Question 13

A way to draw molecules when covalent bonds are drawn as lines, and lone pairs are drawn as dots.

Answer 13

“Lewis Structure”

Question 14

The substance undergoing the change keeps the same composition.

Answer 14

“Physical Changes”

Question 15

The substance changes its composition and becomes a new substance.

Answer 15

“Chemical Changes”

Question 16

A process that involves rearrangement of the molecule structure of a substance to form a new substance.

Answer 16

“Chemical Reaction”

Question 17

shows what compounds you start with and which compounds you end with in a reaction.

Answer 17

“Chemical Equation”

Question 18

Compounds you start with on the left of the arrow.The Start

Answer 18

“Reactants”

Question 19

Compounds you end with on the right of the arrow. * The Result*

Answer 19

“Products”

Question 20

The number of atoms of each element does not change in a chemical reaction.

Answer 20

“Law of Conservation of Mass”

Question 21

Two smaller molecules come together to form a larger molecule.

Answer 21

“Synthesis”

Question 22

One larger molecule splits into two smaller molecules.

Answer 22

“Decomposition”

Question 23

An acid base reacts to form water and salt.

Answer 23

“Neutralization”

Question 24

Oxygen reacts with carbon, and hydrogen-containing molecules to form carbon dioxide and water.

Answer 24

“Combustion”

Question 25

Atoms switch their partners to form new molecules.

Answer 25

“Replacement”

Question 26

A chemical reaction where one element is substituted for another element in a molecule, producing a new element and new compound.

Answer 26

“Single Replacement Reaction”

Question 27

Chemical reactions where the ion is two ionic compounds are exchanged to make two new ionic compounds.

Answer 27

“Double Replacement Reaction”

Question 28

The formulation of an insoluble compound from reactants that are dissolved.

Answer 28

“Precipitation”

Question 29

The natural movement of particles to spread themselves out.

Answer 29

“Diffusion”

Question 30

Rations shape, volume is constant, particles are closely packed and locked in place. Attraction > Motion

Answer 30

“Solid”

Question 31

Takes the shape of container, volume is constant, particles are closely packed but can slide past each other. Motion < Attraction

Answer 31

“Liquid”

Question 32

Takes shape and fills container, valium is variable and depends on pressure, particles are far apart and move freely in every direction.

Answer 32

“Gas”