Everything we can see, smell, taste, and touch is made of ________________ ?
Matter
100
A quantitative property is
any property that you can describe or measure using a numerical value.
100
What is a compound? Give an example
A compound is a pure substance that contains molecules made of two or more different types of elements chemically combined.
Example: non-iodized salt ( NaCl)
100
Define what it means to be soluble and give an example.
Soluble means able to dissolve in a certain solvent.
An example is: sugar is soluble in water.
200
Both living and non-living things are made of matter
True or False
True
200
A qualitative property is
Any property you can observe directly with your senses.
200
What is a polymer?
A polymer is a long chain molecule made up of many repeating units.
200
Is a mixture a pure substance? Why or why not?
A mixture is not a pure substance. This is because it contains 2 or more different types of matter that are not combined together chemically.
200
Define insoluble and give an example.
Insoluble means unable to dissolve in a certain solvent.
Example: Chlorophyl is insoluble in water.
300
Chemistry is the study of what?
The study of matter and its changes.
300
The 3 states of matter (solid, liquid, and gas) are what type of property
qualitative properties
300
What is an element? Give an example.
A pure substance that is made of only one kind of atom.
An example is pure gold.
300
What are the two main types of mixtures?
Homogeneous and Heterogeneous
300
What is a concentrated solution?
A solution with a large mass of dissolved solute for a certain quantity of solvent.
400
Which of the following is matter?
Air, Hope, Love, Heat
Air
400
Define mass
The quantity of matter that makes up an object.
400
What were 2 methods we used to measure volume in science class?
1) Volume = Length x width x height
2) Using the displacement method
400
Describe a heterogeneous mixture
All mixtures are made of 2 or more different types of matter. In a heterogeneous mixture, you can see the different parts with your eyes or with a microscope.
400
What is a dilute solution?
A solution with a small mass of dissolved solute for a certain quantity of solvent.
500
Scientists use the word property when__________________
__________________________?
they are describing matter
500
Define volume
The quantity of space that an object takes up.
500
What units are used to measure mass, volume, and density in our science classes?
All mixtures are made of 2 or more different types of matter. In a homogeneous mixture, you can not see the different parts with your eyes or even with a microscope.
500
What is a saturated solution?
A solution that you can no longer dissolve more solute into.