Definition Of Terms

Question 1

Is any substance that has mass and takes up space by having volume

Answer 1

Matter

Question 2

Are compact and have a definite shape and volume examples: bones and teeth

Answer 2

Solids

Question 3

Have definite volume and assume the shape of their container

Answer 3

Liquids

Question 4

Have neither a definite shape or volume

Answer 4

Gas

Question 5

Building blocks of all forms of living in non-living matter

Answer 5

Chemical elements

Question 6

One or two letters of the elements name in English Latin or another language

Answer 6

Chemical symbol

Question 7

The smallest unit of matter that retain the properties and characteristic of the element

Answer 7

Atom

Question 8

Are the basic composition of an atom

Answer 8

Subatomic particles

Question 9

A subatomic particles that is positively charged

Answer 9

Protons

Question 10

Uncharged or neutral subatomic particles

Answer 10

Neutrons

Question 11

A subatomic particle that is negatively charged

Answer 11

Electron

Question 12

Is an atom that has a positive or negative charge because it has equal numbers of protons and electrons

Answer 12

Ion

Question 13

Is the process of giving up or gaining electrons

Answer 13

Ionization

Question 14

Is the resulting combination of two or more atoms that share electrons

Answer 14

Molecule

Question 15

Indicates the elements in the numbers of atoms of each element that make up a molecule

Answer 15

Molecular formula

Question 16

It’s a substance that contains atoms of two or more different

Answer 16

Compound

Question 17

Is an atom or group of atoms with an unpaired electron on the outermost shell

Answer 17

Free radical

Question 18

Are the forces that hold together the atoms of a molecule or a compound

Answer 18

Chemical bonds

Question 19

Is the force of attraction that holds together ions with the opposite charges

Answer 19

Ionic bond

Question 20

Positively charged ion

Answer 20

Cation

Question 21

Negatively charged ions

Answer 21

Anion

Question 22

An ionic compound that breaks apart into positive and negative ions in solution.

Answer 22

Electrolytes

Question 23

Two or more atoms share electrons rather than gaining or losing them

Answer 23

Covalent bond

Question 24

Forms when a hydrogen atom with a partial positive charge attracts the partial negative charge of neighboring electron negative atoms

Answer 24

Hydrogen

Question 25

Occurs when new bonds form or old buns break between atoms

Answer 25

Chemical reaction

Question 26

Refers to all the chemical reactions occurring in the body

Answer 26

Metabolism

Question 27

Is the capacity to do work

Answer 27

Energy

Question 28

Energy stored by matter due to its position

Answer 28

Potential energy

Question 29

The energy associated with matter in motion

Answer 29

Kinetic energy

Question 30

It's a form of potential energy that is stored in the bonds of compounds and molecules

Answer 30

Chemical energy

Question 31

Is the collision energy needed to break the chemical bonds of the reactant molecules or reaction can start

Answer 31

Activation energy

Question 32

Our chemical compounds that speed up chemical reactions by lowering the activation energy needed for a reaction to occur

Answer 32

Catalyst

Question 33

The process of combination of two or more atoms ions or molecules to form new and larger molecules

Answer 33

Synthesis reaction

Question 34

Collectively refers to all of the synthesis reaction that occur in your body

Answer 34

Anabolism

Question 35

Splits up large molecules into smaller atoms ions or molecules

Answer 35

Decomposition reaction

Question 36

Collectively refers to the decomposition reactions that occur in your body

Answer 36

Catabolism

Question 37

Consists of both synthesis and decomposition reactions

Answer 37

Exchange reactions

Question 38

The products can revert to the original reactants

Answer 38

Reversible reaction

Question 39

Refers to the loss of electrons; in the process to oxidized substance releases energy

Answer 39

Oxidation

Question 40

Refers to the gain of electrons; in the process that reduced substance gains energy

Answer 40

Reduction

Question 41

It's always parallel; when a substance is oxidized, another is reduced at the same time

Answer 41

Oxidation-reduction reaction