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Q 1/31
Score 0
a basic unit of matter that cannot be broken down by normal chemical reactions
30
Atom
Q 2/31
Score 0
The temperature at which a liquid changes to a gas
30
boiling point
31 questions
Q.
a basic unit of matter that cannot be broken down by normal chemical reactions
1
30 sec
Q.
The temperature at which a liquid changes to a gas
2
30 sec
Q.
A substance made up of atoms of two or more different elements joined by chemical bonds (examples: table salt- NaCl, water- H20)
3
30 sec
Q.
The change of state from a gas to a liquid
4
30 sec
Q.
Mass per unit volume; d = m/v with a unit of g/mL or g/cm3 ; a measure of how close-together matter is
5
30 sec
Q.
the change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures
6
30 sec
Q.
the temperature at which a liquid changes to a solid
7
30 sec
Q.
a state of matter with no definite shape or volume; when water is in this state, it is called "water vapor"
8
30 sec
Q.
A state of matter that has no definite shape but has a definite volume.
9
30 sec
Q.
A state of matter that has a definite shape and a definite volume
10
30 sec
Q.
Thermal energy transferred between objects that are at different temperatures
11
30 sec
Q.
a mixture in which the composition is not uniform throughout (examples: raisins in cereal, trail mix, pizza)
12
30 sec
Q.
a mixture in which the composition is uniform throughout. Examples: milk, kool-aid, air
13
30 sec
Q.
Describes a substance that cannot be dissolved in a given solvent. Examples: oil, water
14
30 sec
Q.
the energy an object has due to its motion
15
30 sec
Q.
anything that has mass and takes up space (has volume)
16
30 sec
Q.
The temperature at which a solid becomes a liquid. For pure water= 0 degrees Celsius
17
30 sec
Q.
two or more atoms held together by covalent bonds
18
30 sec
Q.
The physical form matter is in: solid, liquid, gas, or plasma
19
30 sec
Q.
a change in physical form but not the chemical identity of a substance. Examples: melting, boiling, condensation, sublimation, freezing
20
30 sec
Q.
The ability to dissolve in another substance Example: sugar into water
21
30 sec
Q.
The substance that is dissolved in a solution.
22
30 sec
Q.
23
30 sec
Q.
24
30 sec
Q.
A liquid substance capable of dissolving other substances Ex. Water (that has sugar added into it)
25
30 sec
Q.
the process in which a solid changes directly into a gas
26
30 sec
Q.
A measure of the average kinetic energy (motion) of the particles of a substance.
27
30 sec
Q.
The total amount of kinetic energy of a substance. Heat is the flow of thermal energy from areas of high to low thermal energy. As heat is added over time, temperature will increase
28
30 sec
Q.
the amount of matter in an object; measured in grams
29
30 sec
Q.
The amount of space an object takes up. Measured in mL for liquids, cm3 for solids
30
30 sec
Q.
floating or sinking when compared to water, greater density than water (sinks) and less density (floats)