Chemistry Part 1 Test
LT.C.1 I can explain the differences between an element and a compound.
1)
A. Identify the following as a compound or element: 1) O2
2) H2O
B. Explain why some molecules are not compounds.
C. Describe why Ti is an element and not a compound.
LT.C.2 I can classify a substance as an element or compound.
1) Which of the following is an element?
A) O B) CO2
C) H2O
D) HCl
2) Identify the following as an element or a compound: C6H12O6
3) Identify the following as an element or a compound: H2
LT.C.3 I can compare physical and chemical properties.
1) A. What are physical properties?
B. What are chemical properties?
C. List three physical properties of matter and one chemical property of matter.
LT.C.4 I can explain density as a physical property.
1) What is the density of an object that has a mass of 60g and a volume of 10mL?
a) 6mL/g
b) 6g/mL
c) 0.6mL/g
d) 0.6g/mL
2) If a cube that had a density of 5g/mL was broken into a larger cube and a smaller cube what would be
true about the two pieces?
a) larger cubes density > smaller cubes density
b) larger cubes density <smaller cube density
c) larger cubes density=smaller cubes density
d) none of the above are true
LT.C.5 I can explain how density can be used.
1) Choose the object that would be the best to use to make a raft:
a) object weighing 1 pound with a density of 3.27g/mL b) object weighing 0.5 pound with a density of
13.7g/mL
c) object weighing 200 pounds with a density of 1.5g/mL d) object weighing 125 pounds with a density
of 0.876g/mL
LT.C.6 I can organize elements and compounds based on their properties.
1) Here are six elements. Organize them into two groups based on their properties. Explain how you
separated the groups.
Element
Density (g/mL)
React to O2
Conductivity
Malleable
Element A
Element B
Element C
Element D
1.23
1.45
7.32
7.1
Yes
No
No
No
Yes
No
No
No
Yes
No
Yes
No
State of matter
under normal
conditions
Solid
Gas
Liquid
Gas
Element E
Element F
2.2
2.6
Yes
No
Yes
No
No
Yes
Solid
Solid
LT.C.7 I can infer real life applications for a substance based on properties.
1) Determine whether substance A or substance B is better for an outdoor statue in an area with high
amounts of acid rain. Substance A= a type of stone, hard, very dense (>5 g/mL), reacts and dissolves in
acid. Substance B= a type of stone, hard, fairly dense (>3g/mL), does not react with acid.
2) Infer a real life application for a material with the following properties: Shiny, very conductive of both
heat and electricity, very malleable, very ductile, non-reactive, non-flammable, density= 3.74g/mL.
LT.C.8 I can explain solids, liquids, and gases at the molecular level.
1) Draw a diagram of the atoms of a solid, liquid and gas. Below each be sure to include a short
description of what is occurring.
2) Choose two different phase changes and explain what is happening with the energy in the substance
and to the atoms at the molecular level.
LT.C.9 I can explain how all matter is composed of different combinations/amounts of 92 naturally
occurring elements.
1) Explain how it is possible for all matter on Earth to be composed from only 92 elements.
LT.C.10 I can read the periodic table.
1) Using the periodic table determine how many protons are in an atom of C.
a) 12 b) 6
c) 1
d) 0
2) Using the periodic table determine how many neutrons are in an atom of O.
a) 8
b) 0
c) 16 d) 1
3) Using the periodic table write out the atomic mass of Cl.
LT.C.11 I can use patterns of reactivity to determine real life applications for elements and
compounds.
1) Given the fictional periodic table family below, predict a real life application for element X.
a) electric wiring
b) used in matches
c) raft material
d) insulated cup
element
T
Density
(g/mL)
1.2
U
1.9
V
2.5
W
3.4
X
color
conductivity
React to fire
Very light
brown/dull
Light
brown/semidull
Very high
Yes
low
Darker
brown/shiny
Very low
React to
water
Yes
malleability
Only after
long exposure
Yes
Yes
No
Only after
long exposure
No
Yes
Yes
Yes
Yes