Question

part a. vocabulary review
match the terms in column i with the terms in column ii. write the letter of the correct term in the blank at the
column i

1. a type of mixture in which all substances are uni - formly spread out
2. a change in size, shape, or state of matter
3. mixture of air and water droplets
4. a type of mixture in which different materials are spread out unevenly
5. matter in which all atoms are alike
6. explains that matter is neither created nor destroyed during a chemical change
7. heterogeneous mixture containing a liquid in which visible particles settle
8. a material made from atoms of two or more ele - ments that are combined
9. clumps of small particles
10. a characteristic of a material that can be easily observed without changing the substances that make up the material
11. a heterogeneous mixture that does not separate
12. a characteristic that helps to identify a substance by describing how the substance will undergo a chemi - cal change
13. a homogeneous mixture that remains uniformly and constantly mixed
14. a change of one substance in a material to a differ - ent substance
15. scattering of light by particles in a mixture

column ii
a. element
b. homogeneous mixture
c. heterogeneous mixture
d. physical property
e. chemical change
f. colloid
g. compound
h. fog
i. solution
j. tyndall effect
k. chemical property
l. coagulation
m. law of conservation of mass
n. physical change
o. suspension

Explanation:

1. A homogeneous mixture has substances uniformly spread. So, 1 - b.
2. A change in size, shape, or state of matter is a physical change. So, 2 - n.
3. A mixture of air and water droplets is fog. So, 3 - h.
4. A heterogeneous mixture has substances spread out unevenly. So, 4 - c.
5. Matter with all alike atoms is an element. So, 5 - a.
6. The law stating matter is neither created nor destroyed is the law of conservation of mass. So, 6 - m.
7. A heterogeneous mixture with a liquid and suspended visible particles is a suspension. So, 7 - o.
8. A material from two - or more elements is a compound. So, 8 - g.
9. Clumps of small particles is coagulation. So, 9 - l.
10. A characteristic easily observed without changing the substance is a physical property. So, 10 - d.
11. A heterogeneous mixture is as described. So, 11 - c (already used for 4, but it fits).
12. A characteristic helping identify a substance by how it undergoes a chemical change is a chemical property. So, 12 - k.
13. A homogeneous mixture that remains uniformly mixed is a solution. So, 13 - i.
14. A change of one substance to another is a chemical change. So, 14 - f.
15. Scattering of light by particles in a mixture is the Tyndall effect. So, 15 - j.

Answer:

1. b. homogeneous mixture
2. n. physical change
3. h. fog
4. c. heterogeneous mixture
5. a. element
6. m. law of conservation of mass
7. o. suspension
8. g. compound
9. l. coagulation
10. d. physical property
11. c. heterogeneous mixture
12. k. chemical property
13. i. solution
14. f. chemical change
15. j. Tyndall effect