WorksheetsNotes 1,2, and 3 Unit 2
Total questions: 28
Worksheet time: 18mins
What is matter?
The measurement of a liquid's volume
Anything that has mass and takes up space
The measurement of a solid's volume
What is mass?
A church ceremony
(they are called masses)
The measurement of the amount of matter an object contains
What is chemistry
The study of matter and the changes it undergoes
The study of chemicals
The study of energy
Solids have...
Definite shape and definite volume
Definite shape and indefinite volume
Indefinite shape and definite volume
Indefinite shape and indefinite volume
Liquids have...
Definite shape and definite volume
Definite shape and indefinite volume
Indefinite shape and definite volume
Indefinite shape and indefinite volume
Gasses have...
Definite shape and definite volume
Definite shape and indefinite volume
Indefinite shape and definite volume
Indefinite shape and indefinite volume
Energy can...
Do work (moving matter from one location to another)
Cause a change in matter
What is a mixture
A combination of 2 or more types of matter
An item used for grabbing test tubes
Which of the following is true about mixtures?
(Select all that apply)
Each component has its own identity and properties
Each component is the same
Components are only physically mixed and can be separated using physical means
Components are chemically mixed and can be separated using chemical means
What are the two types of mixtures?
(Select all that apply)
Heterogeneous mixtures-a mixture in which the substances are NOT evenly distributed
Homogeneous mixture-type of mixture in which the substances are evenly distributed
I forgot :(
What are the 3 ways to separate a mixture?
Distillation-separates most homogenous mixtures based on differences in boiling points
Physically use one's hands to separate the mixture
Filtration-uses a porous barrier to separate a solid from a liquid
Chromatography-separates the components of a mixture based on the tendency of each component to travel or be drawn across the surface of another material
What is a pure substance?
Every sample has the same properties and composition
Every sample has different properties and composition
Elements are...
Made up of a single type of atom
Made up of 2 or more atoms
Compounds are...
Made of one type of atom
Made of 2 or more types of atoms
How do you breakdown compounds
Use physical methods
Use chemical methods
Quantitative means
numerical information
descriptive information
Qualitative means
numerical information
descriptive information
What are physical properties?
a characteristic that can be observed or measured without changing the identity of a substance
a characteristic that can be observed or measured only by changing the identity of a substance
Physical changes
a change that occurs in the physical appearance of a substance but does not change its chemical identity
Relates to a substance's ability to undergo changes that transform it into a different substance
Chemical properties
a change that forms in the physical appearance of a substance but does not change it's chemical identity
Relates to a substance's ability to undergo changes that transform it into a different substance
What is a chemical reaction?
Atoms are rearranged to form different substances
changes the appearance of a substance but keeps its chemical identity
The four signs of a chemical reaction are...
(Select all that apply)
Change in color
Transfer of energy-Heat or light is produced
It freezes
Precipitate-a solid is produced or gas is produced
Most substances are...
Mixtures
Pure elements
liquids
solids
The first symbol for a compound is always...
Lowercase
Capitalized
The second letter in a compound is always...
Capitalized
Lowercase
A chemical formula represents...
How many of those atoms are in the whole substance
The ratio and types of atoms present
This is an example of a chemical formula. Notice that the subscripts are always to the lower right of the substance it refers to. Write a random responce to continue to the next question
This is an example of a chemical equation. Is there more, less, or the same amount of atoms on the right as there are on the left?
More atoms on the right
Fewer atoms on the right
The same amount of atoms on the right. Matter can not be created or destroyed
