dr doe’s chemistry quiz

What is the chemical symbol for gold?
Au
Ag
Fe
Cu
Which of the following elements is a noble gas?
Helium
Oxygen
Neon
Nitrogen
Argon
What is the formula for water?
Which of the following is an example of an exothermic reaction?
Burning wood
Melting ice
Boiling water
Dissolving salt in water
What is the pH value of a neutral solution?
7
1
14
0
Which element is the most abundant in the Earth's atmosphere?
Nitrogen
Oxygen
Carbon
Hydrogen
What is the chemical formula for table salt?
NaCl
H2O
CO2
CaCO3
Which gas is responsible for the greenhouse effect?
Carbon dioxide
Oxygen
Nitrogen
Methane
What is the atomic number of oxygen?
8
16
6
12
10. Which of the following is a halogen?
Fluorine
Chlorine
Sodium
Bromine
Potassium
What is the chemical symbol for iron?
Fe
Au
Ag
Cu
What is the molar mass of water?
18 g/mol
22 g/mol
16 g/mol
20 g/mol
Which gas is known as laughing gas?
Nitrous oxide
Carbon monoxide
Oxygen
Hydrogen peroxide
What is the chemical formula for methane?
CH4
CO2
H2O
NH3
Which of the following is an example of a heterogeneous mixture?
Salad dressing
Saltwater
Air
Granite
Lemonade
What is the boiling point of water at sea level?
100�C
0�C
50�C
200�C
Which element has the highest electronegativity?
Fluorine
Oxygen
Carbon
Hydrogen
What is the chemical formula for sulfuric acid?
H2SO4
NaOH
CO2
HCl
19. Which of the following is a transition metal?
Iron
Calcium
Copper
Zinc
Sodium
What is the molecular shape of carbon dioxide?
Linear
Tetrahedral
Trigonal planar
Octahedral
What is the chemical formula for glucose?
C6H12O6
CH4
H2O
NH3
22. Which of the following is a reducing agent?
Hydrogen
Oxygen
Carbon
Chlorine
Nitrogen
What is the chemical formula for hydrochloric acid?
HCl
NaOH
CO2
H2SO4
Which of the following is an example of an endothermic reaction?
Melting ice
Burning wood
Boiling water
Dissolving salt in water
What is the atomic number of carbon?
6
12
8
16
Which gas is responsible for the characteristic smell of rotten eggs?
Hydrogen sulfide
Carbon monoxide
Oxygen
Methane
What is the chemical formula for ammonia?
NH3
CO2
H2O
HCl
28. Which of the following is an example of a homogeneous mixture?
Saltwater
Salad dressing
Air
Granite
Lemonade
What is the freezing point of water at sea level?
0�C
100�C
50�C
-273�C
Which element has the highest boiling point?
Tungsten
Mercury
Aluminum
Lead
0
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