Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
Give this quiz to my class
Q 1/88
Score 0
Smallest unit of matter.
30
Atom
Q 2/88
Score 0
Positively charged subatomic particles. The atomic number reflects the number of these in an element.
30
Protons
88 questions
Q.
Smallest unit of matter.
1
30 sec
Q.
Positively charged subatomic particles. The atomic number reflects the number of these in an element.
2
30 sec
Q.
A small particle in the nucleus of the atom with no electrical charge
3
30 sec
Q.
Negatively charged subatomic particles in constant motion around the nucleus of an atom
4
30 sec
Q.
Pure substance that consists entirely of one type of atom. And are represented by symbols.
5
30 sec
Q.
Atoms of the same element that have a different number of neutrons.
6
30 sec
Q.
Molecules that contain more than one element to form another substance
7
30 sec
Q.
When one or more electrons are transferred from one atom to another.
8
30 sec
Q.
Forms when electrons are shared between atoms.
9
30 sec
Q.
The smallest unit of most compounds, the structure that results when atoms are joined together by covalent bonds.
10
30 sec
Q.
Change in form of substance not the chemical makeup - size, shape, states of matter.
11
30 sec
Q.
A substance changes into a new substance that can't be changed back like rusting, digesting and rott
12
30 sec
Q.
Anything that has mass and volume
13
30 sec
Q.
The center of the atom which contains the protons and neutrons
14
30 sec
Q.
The force that holds two atoms together
15
30 sec
Q.
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
16
30 sec
Q.
Energy can be transferred and transformed, but it cannot be created or destroyed.
17
30 sec
Q.
Molecule with an unequal distribution of charge, resulting in the molecule having a positive end and a negative end
18
30 sec
Q.
Material composed of two or more elements or compounds that are physically mixed together but not chemically combined so they can be separated again.
19
30 sec
Q.
A mixture in which substances are evenly distributed throughout
20
30 sec
Q.
A liquid substance capable of dissolving other substances
21
30 sec
Q.
A substance that is dissolved in a solution.
22
30 sec
Q.
Compounds that form hydrogen ions when dissolved in water
23
30 sec
Q.
Compounds that reduce the concentration of hydrogen ions in a solution.
24
30 sec
Q.
Measure of the concentration of hydrogen ions in a solution
25
30 sec
Q.
Carbon-based molecules
26
30 sec
Q.
Weak attraction between a hydrogen atom and another atom
27
30 sec
Q.
Number of protons and neutrons
28
30 sec
Q.
The number of protons in an atom which determines its place on the periodic table
29
30 sec
Q.
Same as the number of protons
30
30 sec
Q.
Determined by the atomic number of protons subtracted from the atomic mass.
31
30 sec
Q.
Molecule with partial charges, +/- ends. Mixes with water. Unequal sharing of electrons
32
30 sec
Q.
No partial charges. Does not mix with water. Equal sharing of electrons.
33
30 sec
Q.
Attraction between like molecules. Water is attracted to water
34
30 sec
Q.
Attraction between molecules of different substances.
35
30 sec
Q.
Weak attraction between a hydrogen atom and another atom.
36
30 sec
Q.
A type of strong chemical bond in which two atoms share one or more pairs of valence electrons.
37
30 sec
Q.
The substance that dissolves solutes. WATER usually.
38
30 sec
Q.
Substance being dissolved.
39
30 sec
Q.
A measure of how difficult it is to stretch or break the surface of a liquid.
40
30 sec
Q.
A process powered by adhesion that causes water molecules to move upward against gravity through a narrow tube such as the stem of a plant.
41
30 sec
Q.
Water can dissolve more substances than any other liquid.
42
30 sec
Q.
Measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14. One is most acidic and 14 is most basic
43
30 sec
Q.
A substance that increases the hydrogen ion (H+) concentration of a solution. Below seven is considered acidic.
44
30 sec
Q.
Any compound that increases the number of hydroxide ions when dissolved in water (OH-). Anything higher than seven is considered basic. Also known as alkalinity.
45
30 sec
Q.
pH of 7 equal amounts of H+ and OH- ions.
46
30 sec
Q.
A solution that resists changes in pH when limited amounts of acid or base are added.
47
30 sec
Q.
A combination of two or more substances that are not chemically combined and can be separated again.
48
30 sec
Q.
A homogeneous mixture of two or more substances, a solute dissolved in a solvent becomes this.
49
30 sec
Q.
Water's ability to absorb and retain heat
50
30 sec
Q.
The change of state from a liquid to a gas
51
30 sec
Q.
The change of state from a gas to a liquid
52
30 sec
Q.
The temperature at which a liquid changes into a solid
53
30 sec
Q.
A reaction that ABSORBS energy in the form of heat
54
30 sec
Q.
A reaction that RELEASES energy in the form of heat
55
30 sec
Q.
Elements or compounds that enter into a chemical reaction
56
30 sec
Q.
The substances made in a chemical reaction; found on the right of the arrow
57
30 sec
Q.
Determines activity and ability of the substrate to fit into an enzyme
58
30 sec
Q.
Factors that can affect an enzyme's activity
59
30 sec
Q.
Anything that speeds up a reaction and reduces activation energy
60
30 sec
Q.
The energy needed to start a reaction
61
30 sec
Q.
A protein polymer that speeds up biochemical reactions
62
30 sec
Q.
The molecule that binds to the enzyme's active site
63
30 sec
Q.
Most enzymes have a specific substrate that fits into its active site
64
30 sec
Q.
A measure of how acidic or basic a substance is; measure of hydrogen ions
65
30 sec
Q.
Describes the values at which an enzymes functions the best (fastest/produces the most product)
66
30 sec
Q.
0-6 on the pH scale
67
30 sec
Q.
8-14 on the pH scale
68
30 sec
Q.
The sum of all the chemical reactions that happens inside a living organism
69
30 sec
Q.
The location where a substrate bonds to enzyme
70
30 sec
Q.
Prefix that means 'inside'
71
30 sec
Q.
The prefix means outside or outer
72
30 sec
Q.
Suffix referring to temperature or heat
73
30 sec
Q.
A substance that slows down or stops a chemical reaction
74
30 sec
Q.
A protein that binds to an enzyme and stimulates activity.
75
30 sec
Q.
A spontaneous chemical reaction in which there is a net release of free energy.
76
30 sec
Q.
A non-spontaneous chemical reaction in which free energy is absorbed from the surroundings.
77
30 sec
Q.
Single chemical unit that makes up a polymer
78
30 sec
Q.
Molecules composed of many monomers; makes up macromolecules
79
30 sec
Q.
Compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body in the form of sugars and starches.
80
30 sec
Q.
Macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
81
30 sec
Q.
An organic compound that is made of one or more chains of amino acids found in meat and nuts
82
30 sec
Q.
Macromolecules that carry hereditary information, DNA and RNA
83
30 sec
Q.
A monosaccharide (simple sugar) that is an important source of energy.
84
30 sec
Q.
A simple organic compound containing CHO and an amino (—NH2) group; monomers of proteins.
85
30 sec
Q.
The monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
86
30 sec
Q.
Simple sugars such as glucose, fructose and galactose; the monomers of carbohydrates
87
30 sec
Q.
A chemical reaction in which two molecules are bonded together with the removal of a water molecule.
