Properties of Matter
Mixtures
Elements and Compounds
Chemical Reactions
100
A substance that forms a vapor is generally in what physical state at room temperature?
liquid or solid
100
What type of properties are used to separate mixtures?
physical properties
100
This type of change produces matter with a different composition than the original matter.
Chemical change
100
A ________________ is a solid that forms and settles out of a liquid mixture
precipitate
200
Which state of matter is characterized by having an indefinite shape, but a definite volume?
liquid
200
Identify the # of phases a solution has. Explain your answer
1 phase, because a solution has a uniform composition
200
What elements are found in the compound CaS?
Calcium and Sulfur
200
This states that in any physical change or chemical reaction, mass is conserved.
The law of conservation of mass.
300
This type of property depends on the type of matter in a sample.
Intensive Property
300
Identify the two methods used to separate mixtures.
Distillation and Filtration
300
Explain how to write the chemical symbol for an element. Use Iron as an example.
Capitalize the first letter (F) and write the second letter in lower case (e). Fe
300
How many grams of liquid water are produced when 75 grams of ice melt?
75 grams
400
Identify the 3 states of matter that water can commonly exist.
Solid, Liquid, Vapor
400
Give three examples of heterogeneous mixtures and three examples of homogeneous mixtures.
Answers may vary :)
400
What does the chemical formula of a compound indicate?
The chemical formula shows the elements that are in the compound and gives the proportions in which elements are found in the compound.
400
When ammonium nitrate explodes, the products are nitrogen, oxygen, and water. When 40 grams of ammonium nitrate explode, 14 grams of nitrogen and 8 grams of oxygen form. How many grams of water form?
18 g of water
500
What is the difference between chemical properties and physical properties? Give an example of each.
Chemical properties describe the ability of a substance to undergo particular chemical changes. Physical properties can be observed without altering the composition of a substance.
500
What is the difference between a solution and a heterogeneous mixture? Give an example of each.
A solution is a mixture that has a uniform composition. The composition of a heterogeneous mixture is not uniform throughout. All solutions are mixtures, but not all mixtures are solutions. Salt water is a solution; sand in water is a heterogeneous mixture.
500
Explain the difference between an element and a compound.
An element cannot be broken down into simpler components through chemical reactions. Compounds are substances that can be broken down into simpler substances through chemical reactions.
500
What are the 4 clues that indicate a chemical change has taken place?
1. Transfer of Energy 2. Color Change 3. Gas Production 4. Formation of a Precipitate
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