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Chapter 2 and 3 quiz

QuestionAnswer
What is a meniscus? the curve at the surface of a liquid
What is matter? anything that has mass and takes up space.
what is volume mesured in? liters and mililiters
how do you find the volume of an irregularly shaped object? water displacement
waht is the difference between weight and mass? mass is how much matter is in something, and weight is the amount of gravitational force of the object.
what is weight measured in? newtons
the tendency of matter to resist change in motion inertia
can physical properties be measured without changing the matters energy? yes
what are some examples of physical properties? thermal conductivity, state, density, solubility, ductibliity, malleablity
the amount of maa in the volume of a substance density
what is the formula for density? m/v
do physical changes form new substances? no
do physical changes change the identity of the matter involved? no
what are some signs of a chemical change? change in odor, production of heat, fizzing
can chemical changes be easily reversed? no
mass is used to measure -- and --. inertia and weight
Physical or Chemical? asprin is crushed into fine powder physical
Physical or chemical? physical
Physical or Chemical? mixing sugar and water physical
physical or chemical? apple rots on the ground chemical
physical or chemical? a tree burns to from ashes chemical
physical or chemical? baking soda reacts with vinegar and forms a gas chemical
the physical froms in which a substance can exist states of matter
what is a solid? state of matter with a definite shape and volume
what is it called when the particles of a solid are orderly aligned? aystalline
what is it called when the particles of a solid are not orderly aligned? (wax,glass,rubber) amorphous
what is a liquid? state of matter that has a definite volume but takes the shape of its container
what is the force that acts on the particles at the surface of a liquid? surface tension
what is the resistance of liquids to flow? viscostity
what is gas? state of matter that has no definite shape or volume
can the amount of space between gas particles change? yes
what is the measure of how fast the particles are moving? temperature
what is the number of times the particles of gas hit their container called? pressure
what is the amount of force exerted on a given area of surface called? pressure
what does boyles law state? for a fixed amount of gas at a constant temperature the volume of the gas is inversely related to the pressure
what does charles law state? for a fixed amount of gas at a constant pressure, the volume of the gas changes in the same way the the temperature of the gas changes
what is the change of a substance from one physical form to another called? change of state
there is a different amount of --- at different states energy
what is melting? the change of state from a solid to a liquid
what is the temperature at which a substance changes from a solid to a liquid? melting point
what is freezing? change of state from a solid to a liquid
what is the temperature at which a liquid changes into a solid? freezing point
what kind of change is freezing and why? endothermic
what is an endothermic change? when energy is added to the substance as it changes
what is an exothermic change? when energy is removed from the substance as it changes
what is evaporation? the change of a substance from ma liquid to a gas
what is the change of a liquid to a vapor throughout the liquid? boiling
what is atmospheric pressure? the outside pressure on the bubbles (in boiling)
what is condensation? the change of a state from a gas to a liquid
what is sublimation? the change of state in which a solid changes directly into a gas
if you gain energy, do the temperature or state change? yes
Created by: kfran0112