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Chemistry
What is the chemical symbol for Potassium?
A
P
B
Pt
C
K
D
Po
Correct Answer
B
Chemistry
Which element is the lightest?
A
Helium
B
Hydrogen
C
Oxygen
D
Carbon
Correct Answer
B
Chemistry
Which gas is required for combustion?
A
Nitrogen
B
Oxygen
C
Carbon dioxide
D
Helium
Correct Answer
B
Chemistry
Which acid is found in vinegar?
A
Hydrochloric acid
B
Sulfuric acid
C
Acetic acid
D
Nitric acid
Correct Answer
C
Chemistry
Which element is represented by the symbol Au?
A
Silver
B
Gold
C
Aluminum
D
Argon
Correct Answer
B
Chemistry
What is the chemical formula of carbon dioxide?
A
CO
B
C?O
C
CO?
D
C?O?
Correct Answer
C
Chemistry
Which particle has no electrical charge?
A
Proton
B
Electron
C
Neutron
D
Ion
Correct Answer
C
Chemistry
Which particle has a negative electrical charge?
A
Proton
B
Neutron
C
Electron
D
Nucleus
Correct Answer
C
Chemistry
What is the molecular formula of water?
A
CO?
B
H?O
C
O?
D
H?
Correct Answer
B
Chemistry
Which element has the chemical symbol Fe?
A
Fluorine
B
Iron
C
Francium
D
Fermium
Correct Answer
B