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2 Chemistry - Matter

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Total cards: 23•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (23)

#1
Front (Question)

define temperature

Back (Answer)

average kinetic energy of the particles in a substance

#2
Front (Question)

define internal energy

Back (Answer)

total energy stored in the particles of a substance (energy from bonds-potential, and kinetic)

#3
Front (Question)

define thermal energy/heat

Back (Answer)

energy transferred from one body to another

#4
Front (Question)

why does the temperature stay constant something is changing state?

Back (Answer)

because the energy that is being added is being used to break the bonds between the particles

#5
Front (Question)

how do you change the state of something?

Back (Answer)

by adding heat you add energy which makes the particles to move faster and break the bonds

#6
Front (Question)

what causes pressure in a gas?

Back (Answer)

particles colliding with each other

#7
Front (Question)

why does a balloon burst if you keep blowing?

Back (Answer)

because theres too much pressure

#8
Front (Question)

a gas is in a sealed container how will the pressure change if the container is cooled?

Back (Answer)

when it is cooled it loses energy, making the particles slower, this will decrease the rate of collision, therefore reducing the pressure

#9
Front (Question)

define solute

Back (Answer)

what is dissolved

#10
Front (Question)

define dissolve

Back (Answer)

when you mix something in another liquid

#11
Front (Question)

define mixture

Back (Answer)

when you have 2 or more substances but they are not chemically bonded

#12
Front (Question)

define concentration

Back (Answer)

how much of a substance in a mixture

#13
Front (Question)

define saturated

Back (Answer)

when no more solute can be dissolved

#14
Front (Question)

define solvent

Back (Answer)

what you mix the solute with

#15
Front (Question)

define solution

Back (Answer)

a solute and a solvent mixed

#16
Front (Question)

what is the modern atomic theory

Back (Answer)

elements are composed of extremely small atoms compounds are formed by the chemical combination of 2 or more diff atoms

#17
Front (Question)

define molecule

Back (Answer)

2 or more atoms chemically bonded together

#18
Front (Question)

differ molecule of an element molecule of a compound atom of an element

Back (Answer)

molecule of an element C2 molecule of a compound C2H2 atom of an element C

#19
Front (Question)

what is atomic mass (amu)

Back (Answer)

mass of protons neutrons and electrons

#20
Front (Question)

charge and mass of protons neutrons and electrons

Back (Answer)

proton – charge 1+ mass 1 neutron – charge 0 mass 1 electron – charge -1 mass 0

#21
Front (Question)

define valence shell

Back (Answer)

outer electron shell

#22
Front (Question)

what does each period on the p. table represent?

Back (Answer)

no. of electron shells

#23
Front (Question)

what does group number on the p. table represent?

Back (Answer)

the number of electrons on the outer shell