ssment
Page 42
1. Two categories that are used to classify properties of matter are extensive and intensive.
2. All samples of a given substance have the same intensive properties because every sample has the same composition.
3. The three states of matter are solids, liquids, and gases.
4. Physical changes are grouped into two categories known as reversible and irreversible. Reversible changes are changes from one state to another. Irreversible changes are changes that cannot change from one state to
5. Color
6. Liquids and gases are similar because they both have an indefinite shape. Liquids and solids are different because liquids have an indefinite shape while solids have a definitive shape.
7. The freezing of mercury is a reversible …show more content…
homogeneous mixture
B. heterogeneous mixture
C. homogeneous mixture
D. heterogeneous mixture
15. They are similar because they have a uniform composition throughout. They are different because a substance is a definite composition, while a mixture is made by combining two or more substances.
16. You would use filtration to separate a mixture when a mixture consists of a solid and a liquid. You would use distillation when you have two or more liquids with different boiling points.
17. To separate sand and table salt you add water. Table salt dissolves in water leaving salt water and sand. The sand then will go through the process of filtration leaving salt water and sand separated. Then allow the salt water to evaporate where the salt will not evaporate and allow the salt to be separated from the sand.
Page 52
20. Compounds can be broken down into simpler substances while elements cannot.
21. The composition of a substance is always fixed, but the composition of a mixture can vary.
22. Chemical symbols are used to represent elements and chemical formulas are used to represent compounds.
23. Electrolysis, or the passing of an electric current through a substance, can break down a compound into simpler …show more content…
extensive property-dependent of sample size- mass intensive property- independent of sample size- color
37. Melting and boiling point.
41. Solid- has particles tightly packed together in orderly fashion
Liquid- in shape of whatever is holding them
Gases- particles are everywhere and far apart
44. Homogenous mixtures stay the same, while heterogeneous mixtures do not.
45. A solution has one phase because they are homogeneous mixtures that have uniform composition.
48. Compounds can be broken down into simpler substances while elements are the simplest form.
49.
a. Hydrogen and oxygen are elements that make the compound water.
b. Nitrogen and oxygen make up the mixture air
c. Sodium and chlorine make up the compound salt
d. The element carbon and the compound water result from heating up sugar.
52. It contains two atoms of hydrogen and one of oxygen.
53. When the reactants iron d sulfur are heated, they form iron sulfide.
55. Chemical
57. Mass is always changing depending on the amount of matter in a sample- extensive property.
66. a. heterogeneous mixture; b. compound; c. homogeneous mixture; d. heterogeneous mixture
71. When water boils, bubbles of gas are releases- physical
Page 42
1. Two categories that are used to classify properties of matter are extensive and intensive.
2. All samples of a given substance have the same intensive properties because every sample has the same composition.
3. The three states of matter are solids, liquids, and gases.
4. Physical changes are grouped into two categories known as reversible and irreversible. Reversible changes are changes from one state to another. Irreversible changes are changes that cannot change from one state to
5. Color
6. Liquids and gases are similar because they both have an indefinite shape. Liquids and solids are different because liquids have an indefinite shape while solids have a definitive shape.
7. The freezing of mercury is a reversible …show more content…
homogeneous mixture
B. heterogeneous mixture
C. homogeneous mixture
D. heterogeneous mixture
15. They are similar because they have a uniform composition throughout. They are different because a substance is a definite composition, while a mixture is made by combining two or more substances.
16. You would use filtration to separate a mixture when a mixture consists of a solid and a liquid. You would use distillation when you have two or more liquids with different boiling points.
17. To separate sand and table salt you add water. Table salt dissolves in water leaving salt water and sand. The sand then will go through the process of filtration leaving salt water and sand separated. Then allow the salt water to evaporate where the salt will not evaporate and allow the salt to be separated from the sand.
Page 52
20. Compounds can be broken down into simpler substances while elements cannot.
21. The composition of a substance is always fixed, but the composition of a mixture can vary.
22. Chemical symbols are used to represent elements and chemical formulas are used to represent compounds.
23. Electrolysis, or the passing of an electric current through a substance, can break down a compound into simpler …show more content…
extensive property-dependent of sample size- mass intensive property- independent of sample size- color
37. Melting and boiling point.
41. Solid- has particles tightly packed together in orderly fashion
Liquid- in shape of whatever is holding them
Gases- particles are everywhere and far apart
44. Homogenous mixtures stay the same, while heterogeneous mixtures do not.
45. A solution has one phase because they are homogeneous mixtures that have uniform composition.
48. Compounds can be broken down into simpler substances while elements are the simplest form.
49.
a. Hydrogen and oxygen are elements that make the compound water.
b. Nitrogen and oxygen make up the mixture air
c. Sodium and chlorine make up the compound salt
d. The element carbon and the compound water result from heating up sugar.
52. It contains two atoms of hydrogen and one of oxygen.
53. When the reactants iron d sulfur are heated, they form iron sulfide.
55. Chemical
57. Mass is always changing depending on the amount of matter in a sample- extensive property.
66. a. heterogeneous mixture; b. compound; c. homogeneous mixture; d. heterogeneous mixture
71. When water boils, bubbles of gas are releases- physical