20 questions
a characteristic of matter that you observe as it reacts with or changes into a different substance
physical change
physical property
chemical change
chemical property
a characteristic of matter that you can observe without changing the identity of the substances that make it up
physical change
physical property
chemical change
chemical property
a change in matter in which the substances that make up the matter change into other substance with different chemical and physical properties
physical change
physical property
chemical change
chemical property
a change in the size, shape, form, or state of matter that does not change the matter’s identity
physical change
physical property
chemical change
chemical property
An experiment was performed, and the observations listed below. Which substance showed only a physical change?
Substance 1
Substance 2
Substance 3
Substance 4
When hydrogen, a colorless gas, combines with chlorine, a green and poisonous gas, a new compound called hydrogen chloride, or stomach acid, is formed. Which of the following statements is true about the change?
Hydrogen chloride has the same properties as hydrogen gas and chlorine gas.
New chemical bonds are not made when hydrogen chloride is formed.
Hydrogen chloride has different properties than hydrogen gas and chlorine gas.
Which of the following is NOT a physical property?
Conductivity
Magnetism
Flammability
Solubility
Choose all the chemical change indicators
production of gas bubbles
formation of a precipitate
a change in state of matter
a change in temperature
crystals dissolve in a solution
Two clear solutions are mixed together in a beaker. The mixture heats up and turns a yellow color. Eventually a yellow solid settles to the bottom of the beaker. What is the new substance formed during this chemical change?
a clear solution
the color change
the heat produced
the yellow precipitate
The freezing point of water is 0*C
physical property
chemical property
The density of rubbing alcohol is 9.2 grams/mL
physical property
chemical property
How bubbles form when testing some minerals with acid
physical property
chemical property
Frost forms on windows in the cold air
physical change
chemical change
A swing in the park develops rust on it
physical change
chemical change
Sculptures are carved into rocks
physical change
chemical change
Two different chemicals combine with oxygen for a type of algae to "light up."
physical change
chemical change
In glowsticks, two chemicals, hydrogen peroxide and a type of alcohol mix to form a glowing liquid.
physical change
chemical change
This diagram represents a
physical change
chemical change
Choose all the chemical properties
Asbestos does not burn
Platinum does not develop rust
density of water is 1g/mL
Pyrite bubbles in acid
Wood burns
Choose all the physical properties
volume, mass, density
melting/vaporization points
flammability/combustibility
magnetism
malleability