Benchmark 4

Question 0

Most penetrating type of radiation

Answer 0

Gamma

Question 1

Negatively charged particles emitted from a nucleus at high-speed

Answer 1

Beta

Question 2

The amount of time it takes for half of a radioactive isotope to break apart

Answer 2

Half-life

Question 3

The process by which nuclei having low masses are united to form nuclei with larger masses

Answer 3

Fusion

Question 4

Adams of the same element with a different number of neutrons

Answer 4

Isotope

Question 5

Most reactive group of metals

Answer 5

Alkali metals

Question 6

Elements that form salts by combining with metals

Answer 6

Halogens

Question 7

React to perform bases, found in minerals

Answer 7

Alkaline earth metals

Question 8

Form of multiple charges, used to make pigments

Answer 8

Transition metals

Question 9

What do dot diagrams represent

Answer 9

Valence electrons

Question 10

What kind of chemical bond is formed when an equal exchange or transfer of electrons occurs

Answer 10

Ionic

Question 11

Hold Adams together in a compound

Answer 11

Chemical bond

Question 12

A group of covalently bonded atoms that act together as one charged atom

Answer 12

Polyatomic ion

Question 13

A chemical bond that occurs when Adams share electrons

Answer 13

Covalent

Question 14

What is an insoluble compound that forms during a chemical reaction

Answer 14

Precipitate

Question 15

When an element gains electrons

Answer 15

Reduction

Question 16

When an element loses electron

Answer 16

Oxidation

Question 17

The mass of the products must equal the mass of the reactants

Answer 17

Law of conservation of mass

Question 18

NaCl

Answer 18

Sodium chloride

Question 19

H2O

Answer 19

dihydrogen monoxide

Question 20

Silicon tetroxide

Answer 20

SiO4

Question 21

The chemical equation that has the same number of atoms of each element each side of the equation

Answer 21

Balanced

Question 22

Each substance on the left side of the arrow in a chemical equation

Answer 22

Reactant

Question 23

The energy required to break the original bonds is less than the energy release the new bonds form

Answer 23

Exergonic reaction

Question 24

If heat must be added to a chemical reaction for the reaction to take place

Answer 24

Endothermic

Question 25

Which of the following could represent a decomposition reaction

Answer 25

Compound equals element plus element

Question 26

In a chemical equation the symbol that means dissolved in water is

Answer 26

Aqueous

Question 27

When one element replaces another element in a compound

Answer 27

Single displacement

Question 28

A substance that speeds up a chemical reaction without being permanently changed itself

Answer 28

Catalyst

Question 29

The breaking down of a substance into two or more simpler substances

Answer 29

Decomposition

Question 30

Each substance to the right of the arrow in a chemical equation

Answer 30

Product

Question 31

Substances that prevent or slow down chemical reaction

Answer 31

Inhibitors

Question 32

A chemical reaction in which energy is released

Answer 32

Exothermic

Question 33

Numbers that precede symbols and formulas in a chemical equation

Answer 33

Coefficients

Question 34

According to the law of mass of conservation how does the mass of the products in a chemical reaction compared to the mass of the reactants

Answer 34

The masses are equal

Question 35

What is an insoluble compound that forms during a chemical reaction

Answer 35

Precipitate

Question 36

A chemical reaction in which two or more substances combined to form another substance

Answer 36

Synthesis

Question 37

The burning of wood in a campfire that produces heat and light would be both an example of blank and blank

Answer 37

Exergonic, exothermic

Question 38

When most chemical reactions take place some blank in the the reactants must be broken a process that requires energy

Answer 38

Chemical bonds

Question 39

Explain what is meant by a balanced chemical equation

Answer 39

A chemical equation when the number of atoms of each type and on each side of the equation are the same

Answer 40

Synthesis

Answer 41

Single displacement

Answer 42

Decomposition

Answer 43

Double displacement

Question 44

The splitting apart of a nucleus of a large Adam into two smaller atoms

Answer 44

Fission

Question 45

Stopped by a piece of paper, helium molecules that is the weakest form of radiation

Answer 45

Alpha

Question 46

Group 18, inert, do not form compounds

Answer 46

Noble gases

Question 47

Include oxygen and sulfur

Answer 47

Chalcogens

Question 48

Found on the stair step line, part metal, part nonmetal

Answer 48

Metalloid

Question 49

What does the chemical symbols represent for an element

Answer 49

Name

Question 50

This is an abbreviation used for chemicals in chemistry

Answer 50

Chemical symbol

Question 51

Number that precedes chemical formulas, used to balance equations

Answer 51

Coefficient

Question 52

H2o

Answer 52

Liquid

Question 53

Represent oxidation numbers or charges of ion

Answer 53

Superscripts

Question 54

O2

Answer 54

Gas

Question 55

The number of each type of Adam and In the compound as shown by these numbers

Answer 55

Subscripts

Question 56

Na

Answer 56

Solid

Question 57

When two elements or compounds combine to form one large compound

Answer 57

Synthesis

Question 58

When one element replaces another element in a compound

Answer 58

Single displacement

Question 59

When a compound splits apart into smaller compounds or elements

Answer 59

Decomposition

Question 60

When a carbon compound reacts with oxygen to form heat, carbon dioxide, and water

Answer 60

Combustion

Question 61

When two salts react, break apart, and recombine to make two new compounds

Answer 61

Double displacement