Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
AlsupChem 1st Sem Rev PT2
Test Description: Review of 1st semester
Instructions: Answer all questions to get your test result.
1) What is one difference between a mixture and a compound?
A
A compound consists of more than one phase
B
A mixture can only be seperated into its components by chemical means
C
A compound can only be seperated itno its componenets by chemical means
D
A mixture must be uniform in composition
2) The first figure in a properly written chemical symbol always is _
A
italicized
B
capitalized
C
underlined
D
boldfaced
3) Which of the following represents a compound?
A
H2O
B
H
C
O-14
D
H-3
4) What must be done to be certain that a chemical change has taken place?
A
check the composition of sample before and after change
B
check for bubbles
C
demonstrate the release of heat
D
demonstrate energy is absorbed
5) The diameter of a carbon atom is 0.000 000 000 154 m . What is the number in scientific notation?
A
1.54 x 10 - 12
B
1.54 x 10 10
C
1.54 x 10 12
D
1.54 x 10 -10
6) How man significan figures are in the measurement 40,500 mg
A
5
B
8
C
2
D
3
7) What is the temperature of absoluted zero measured in C
A
-373
B
-273
C
-173
D
-73
8) What is the boiling point of water in kelvins?
A
373 K
B
100 K
C
273 K
D
0K
9) The atomic number of an element is the total number of which particles in the nucleus?
A
protons and electrons
B
electrons
C
neutrons
D
protons
10) Isotopes of the same element have different_________
A
atomic numbers
B
mass numbers
C
positions on the periodic table
D
chemical behavior
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?