WorksheetsTest #1
Total questions: 25
Worksheet time: 31mins
There are 24 cm3 Find the total mass.
Methane contains one atom of carbon and four atoms of hydrogen that are chemically bonded. It is a main component of natural gas. Methane is a ___________________ .
pure substance
mixture
Nickel has the chemical symbol Ni and atomic number 28. It is a silvery-white metal and cannot be broken down physically or chemically into a more simple substance. Nickel is a ___________________ .
element
compound
A object has a volume of 17 mL. The same object has a mass of 212 g. What is the density of this object?
12.4 g/m3
12 g/mL
1.24 g/mL
12/4 mL/g
Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.
heterogeneous
homogeneous
pure
0.000008
Chalk is a mineral found in rocks. It contains carbon, oxygen and calcium atoms. Chalk is a ___________________ .
element
compound
100000000
Instant coffee is made by dissolving a powder in hot water. Instant coffee is a ___________________ .
pure substance
mixture
True or False: elements AND compounds are pure substances.
True
False
Coffee, mouthwash, and vinegar are examples of __________________ mixtures.
heterogeneous
homogeneous
pure
What is the formula for mass
M=D x V
M=V x D
What is the formula for volume
V=D/M
V=D X M
V= M/D
