WorksheetsElements, Compounds, Mixtures
Total questions: 20
Worksheet time: 11mins
1 A substance made up of two or more chemically combined elements is —
an element
mixture
compound
solution
Table salt, or sodium chloride has the chemical formula NaCl. How is sodium chloride classified?
as an element
. as a compound
as a mixture
as a liquid
Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?
an element
compound
mixture
suspension
This picture represents which of the following?
A single element
Mixture of molecules
mixture of atoms
mixture of compounds
What does this illustrate
Elements
Compunds
Mixture of Elements and Compunds
Mixture of Compounds
This diagram represents a _____.
Element
Compound
Mixture of compound and element
Mixture of two elements
Zinc
Z
Zi
ZN
Zn
Hydrogen
Hy
H
Hr
Hn
Iron
Ir
In
Fe
FE
Potassium
P
K
Pt
k
Which compound is best represented by this particle diagram?
NH3
H2O
CH4
HCl
Which compound is best represented by this particle diagram?
C2H6
C6H12O6
CO2
NaCl
How many types of atoms are in K₂SO₄
7
3
2
4
How many total atoms are in K₂SO₄
7
2
4
3
