WorksheetsElements, Compunds, Mixtures, & Chemical Formulas
Total questions: 14
Worksheet time: 7mins
An element is a ____ that cannot be separated into simpler substances by physical or chemical means.
pure substance
solution
mixture
compound
___ is a pure substance containing two or more kinds of atoms.
element
mixture
compound
solution
Which letter represents a mixture?
D
G
E
A
What is the difference between a mixture and a compound?
Mixtures are physically combined and compounds are chemically combined.
Mixtures are chemically combined and compounds are physically combined.
Nothing, they are the same.
Which of the following is an example of an elemet?
Cereal
H2O (water)
Cu (Copper)
CO2 (Carbon Dioxide)
Which of the following is an example of a compound?
Cu (Copper)
H2O (water)
NaCl (salt)
Lemonade
Which of the following is an example of a homogenous mixture?
Cereal
Trail Mix
Lemonade
Salad Dressing
Which of the following is an example of a hetergeneous mixture?
Lemonade
Apple Juice
Water
Trail Mix
How many different types of atoms are there in the following molecule?
7
6
3
8
How many elements are in the compound HCO?
1
2
3
4
Hydrogen (H), Carbon (C), and Oxygen (O)... what is the bond?
Ionic bond
Covalent bond
Metallic Bond
Sodium (Na) and Chlorine (Cl)... what is the bond?
Ionic bond
Covalent bond
Metallic bond
How many atoms of Hydrogen are in 2H2O?
1
2
4
8
How many atoms of Oxygen (O) are in 2H2O?
1
4
8
2
