Question

composition of matter
directions: match the terms in column ii with the definitions in column i. write the letter of
the correct term in the blank at the left.

column i\t\t\t\t\t\tcolumn ii
______ 1. heterogeneous mixture containing a liquid in which visible \t a. tyndall effect
\t\t\tparticles settle\t\t\t\t\tb. colloid
______ 2. contains two or more gaseous, liquid, or solid substances \t c. heterogeneous mixture
\t\t\tblended evenly throughout the mixture.\t\t\td. mixture
______ 3. substance in which all atoms are alike\t\t\t\te. element
______ 4. any material made of two or more substances that can be \t f. suspension
\t\t\tphysically separated\t\t\t\t
g. solution
______ 5. the scattering of light by colloidal particles\t\t\th. homogeneous mixture
______ 6. heterogeneous mixture with larger particles that \t\t i. compound
\t\t\tnever settle
______ 7. a mixture in which different materials can be easily
\t\t\tdistinguished
______ 8. homogeneous mixture of particles so small they cannot be
\t\t\tseen and will never settle to the bottom of their container
______ 9. substance in which two or more elements are combined in
\t\t\ta fixed proportion

directions: fill in the table below with the element below that matches its description
\t\tsilicon\t\t\tlead\t\t\ttitanium
\t\tamericium\t\taluminum\t\tmagnesium

1. radioactive metal\t\t\t\t
2. bendable and resists corrosion\t\t\t
3. found in windowglass and computer chips\t\t
4. found in chlorophyll\t\t\t\t
5. used in body implants\t\t\t\t
6. has a high density\t\t\t\t

Explanation:

Matching Terms (Questions 1 - 9)

1. Question 1: A suspension is a heterogeneous mixture with a liquid where visible particles settle. So match with f.
2. Question 2: A solution (homogeneous mixture) has substances blended evenly. Wait, no—wait, a homogeneous mixture (h) has uniform composition, but the definition here is two or more substances blended evenly. Wait, a solution (g) is a homogeneous mixture of solute and solvent. Wait, the definition: "contains two or more gaseous, liquid, or solid substances blended evenly throughout the mixture"—that's a homogeneous mixture (h) or solution (g)? Wait, a solution is a type of homogeneous mixture. But the options: h is homogeneous mixture, g is solution. Wait, the definition for 2: "blended evenly throughout"—so homogeneous mixture (h) or solution (g)? Wait, let's check the options. Option h: homogeneous mixture; option g: solution. A solution is a homogeneous mixture, so maybe h? Wait, no—wait, the definition for 2: "contains two or more... blended evenly"—that's a homogeneous mixture (h). Wait, but option g is solution. Wait, maybe the answer is h? Wait, no, let's check the other definitions. Let's proceed.
3. Question 3: An element (e) is a substance with all atoms alike. So match with e.
4. Question 4: A mixture (d) is made of two or more substances that can be physically separated. So match with d.
5. Question 5: Tyndall effect (a) is the scattering of light by colloidal particles. So match with a.
6. Question 6: A colloid (b) is a heterogeneous mixture with larger particles that never settle. So match with b.
7. Question 7: A heterogeneous mixture (c) has different materials easily distinguished. So match with c.
8. Question 8: A solution (g) is a homogeneous mixture with particles too small to see and never settle. So match with g.
9. Question 9: A compound (i) is two or more elements combined in fixed proportion. So match with i.

Filling the Table (Questions 10 - 15)

1. Radioactive metal: Americium (americium) is radioactive. So americium.
2. Bendable and resists corrosion: Aluminum is bendable and resists corrosion. So aluminum.
3. Found in window glass and computer chips: Silicon is used in computer chips and window glass (silica is in glass). So silicon.
4. Found in chlorophyll: Magnesium is a central atom in chlorophyll. So magnesium.
5. Used in body implants: Titanium is used in body implants (biocompatible). So titanium.
6. Has a high density: Lead has a high density. So lead.

Answer:

s:

1. f
2. h
3. e
4. d
5. a
6. b
7. c
8. g
9. i
10. americium
11. aluminum
12. silicon
13. magnesium
14. titanium
15. lead