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Unit1 Test

Last updated over 5 years ago

15 questions

15

Drag the term to the correct sentence or definition.

Draggable item		Corresponding Item
states		Properties that can be observed without changing the chemical composition of the sample of matter
heterogeneous		Describes an occurrence that has been tested under different conditions over a long period of time
exact numbers		The components of this mixture can be easily seen with the naked eye and are distinguishable
law		Anything that has mass and volume
hypothesis		Elements and compounds are classified as this
mass		Chemical changes are also known as _____.
physical properties		Have an infinite number of significant figures
qualitative		A ____ serves as a possible explanation to a problem.
weight		Solid, liquid, and gas are the three _____ of matter.
pure substances		_____ measurements are descriptive and non-numeric.
accuracy		______ is the study of matter and the changes it undergoes.
blended		_____ is the amount of matter in an object.
chemical reactions		Unlike compounds that are bonded together, mixtures are ______ together.
chemistry		The force of gravity pushing down on an object accounts for the object’s _____.
matter		How close multiple measurements are to the accepted value is known as ____.

6

Drag the following the descriptions to the correct label of physical or chemical property.

alcohols are flammable
a density of 3g/mL
boils at 100°C
decomposes in CO2
attracted to the south pole of a magnet
a gas has a volume of 22.4L

physical property
chemical property

6

Drag the following descriptions to either chemical or physical change.

melting ice
burning popcorn
digesting food
molding clay
rust forming on a car
dissolving salt

chemical change
physical change

8

Describe the following as either heterogeneous, homogeneous, element, or compound by dragging them to the correct label.

Salt water
Pizza
Oil + Water
Zinc
tossed salad
Carbon dioxide
Salad
Milk

heterogeneous mixtures
homogeneous mixture
element
compound

5

Drag the descriptions to the correct property. Some may be used more than once.

can be easily compressed
most tightly packed form of matter
indefinite shape
indefinite volume

solid
liquid
gas

1

How many sig figs does this number have?

1

How many sig figs does this number have?

1

Write this number in the correct scientific notation.

1

Write this number in the correct scientifc notation.

1

Perform the following calculations and round your answers to the correct number of significant figures and/or decimal points. Answers may be in either long form or scientific notation.

1

Perform the following calculations and round your answers to the correct number of significant figures and/or decimal points. Answers may be in either long form or scientific notation.

1

Perform the following calculations and round your answers to the correct number of significant figures and/or decimal points. Answers may be in either long form or scientific notation.

1

Perform the following calculations and round your answers to the correct number of significant figures and/or decimal points. Answers may be in either long form or scientific notation.

1

Perform the following calculations and round your answers to the correct number of significant figures and/or decimal points. Answers may be in either long form or scientific notation.

1

Perform the following calculations and round your answers to the correct number of significant figures and/or decimal points. Answers may be in either long form or scientific notation.