Name That Element
C
Carbon
Mass
kg
34.5
3
_________ is the study of the composition, structure, and properties of matter, the processes that matter undergoes, and the energy changes that accompany these processes.
Chemistry
Burning paper is an example of physical change. True or false?
False
O
Oxygen
Time
sec
5005
4
___________ is a measure of the gravitational pull on matter, while mass is a measure of the quantity of matter.
Weight
In the following reaction, identify the reactants:
carbon + oxygen → carbon dioxide
K
Potassium
Energy
J
5.0 x 103
2
The branch of chemistry focuses on the identification of the components and composition of materials.
Analytical chemistry
To change from one unit to another, you must first determine the appropriate _________.
Conversion factor
Na
Sodium
Volume
m3 or cm3
1.0005400
8
This type of research is carried out for the sake of increasing knowledge.
Basic research
What is the sum of 3.089 g and 0.07452 g?
3.164 g
W
Tungsten
Density
g/cm3 or kg/m3
0.00430
3
This type of mixture is not uniform throughout.
Heterogeneous mixture
The density of lead is 11.35 g/cm3. What is the mass of a piece of lead with a volume of 10.0 cm3?
113.5 g