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Chemistry
Which element has the symbol Cl?
A
Calcium
B
Carbon
C
Chlorine
D
Cobalt
Correct Answer
C
Chemistry
What is the chemical formula of sodium chloride?
A
Na?Cl
B
NaCl
C
NaCl?
D
SCI
Correct Answer
B
Chemistry
Which of the following is a noble gas?
A
Chlorine
B
Oxygen
C
Neon
D
Hydrogen
Correct Answer
C
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