WorksheetsSTAAR Review: Elements and Density
Total questions: 10
Worksheet time: 5mins
Chemical symbols represent ____________ from the periodic table. (6.5C)
elements
compounds
chemicals
atoms
Chemical formulas represent _______________, 2 or more elements together. (6.5C)
elements
compounds
burns
atoms
How many elements are found in 2H2SO4?
2
3
7
14
Determine if the following is an element or compound: H2O. (6.5C)
element
compound
A rectangular block of copper metal weighs 1890 g. The dimensions of the block are 8 cm x 5 cm x 5 cm. From this data, what is the density of copper? (6.6B)
9.45 g/cm3
1,690 g/cm3
2,090 g/cm3
0.106 g/cm3
Determine if the following is an element or compound: O2. (6.5C)
element
compound
neither
both
How many atoms of hydrogen are found in 2H2SO4? (6.5C)
2
4
8
0
Find the density of the object shown (6.6B).
100 g
2 g/cm3
2 g
200 g/cm3
Which of the following is the correct formula for calculating density? (6.6B)
D = M/V
D = V/M
D = M x V
D = M - A
A compound is-- (6.5C)
made up of 2 or more elements
a star in the sky
chemical reaction
