Melting and boiling points

Question 1

Sulfur melts at 115 °C and boils at 445 °C. Over how many degrees is it a liquid?

Answer °C

Question 2

Which of these substances is a liquid at room temperature (20 °C)? mercury: melts −39 °C, boils 357 °C iron: melts 1538 °C, boils 2862 °C oxygen: melts −218 °C, boils −183 °C copper: melts 1085 °C, boils 2562 °C

• A. iron
• B. mercury
• C. copper
• D. oxygen

Question 3

Ethanol melts at −114 °C and boils at 78 °C. What state is it in at −18 °C?

• A. solid
• B. liquid
• C. gas

Question 4

Sulfur melts at 115 °C and boils at 445 °C. Over how many degrees is it a liquid?

Answer °C

Question 5

Which of these substances is a liquid at room temperature (20 °C)? bromine: melts −7 °C, boils 59 °C copper: melts 1085 °C, boils 2562 °C oxygen: melts −218 °C, boils −183 °C nitrogen: melts −210 °C, boils −196 °C

• A. oxygen
• B. nitrogen
• C. copper
• D. bromine

Question 6

Copper melts at 1085 °C and boils at 2562 °C. What state is it in at 1054 °C?

• A. solid
• B. liquid
• C. gas

Question 7

Ethanol melts at −114 °C and boils at 78 °C. Over how many degrees is it a liquid?

Answer °C

Question 8

Which of these substances is a liquid at room temperature (20 °C)? bromine: melts −7 °C, boils 59 °C sulfur: melts 115 °C, boils 445 °C oxygen: melts −218 °C, boils −183 °C copper: melts 1085 °C, boils 2562 °C

• A. copper
• B. sulfur
• C. bromine
• D. oxygen

Question 9

Mercury melts at −39 °C and boils at 357 °C. What state is it in at 159 °C?

• A. solid
• B. liquid
• C. gas

Question 10

Aluminium (aluminum) melts at 660 °C and boils at 2470 °C. Over how many degrees is it a liquid?

Answer °C

Question 11

Which of these substances is a liquid at room temperature (20 °C)? nitrogen: melts −210 °C, boils −196 °C mercury: melts −39 °C, boils 357 °C aluminium (aluminum): melts 660 °C, boils 2470 °C sulfur: melts 115 °C, boils 445 °C

• A. nitrogen
• B. mercury
• C. sulfur
• D. aluminium (aluminum)

Question 12

Mercury melts at −39 °C and boils at 357 °C. What state is it in at 159 °C?

• A. solid
• B. liquid
• C. gas

Question 13

Iron melts at 1538 °C and boils at 2862 °C. Over how many degrees is it a liquid?

Answer °C

Question 14

Which of these substances is a liquid at room temperature (20 °C)? copper: melts 1085 °C, boils 2562 °C oxygen: melts −218 °C, boils −183 °C aluminium (aluminum): melts 660 °C, boils 2470 °C mercury: melts −39 °C, boils 357 °C

• A. oxygen
• B. copper
• C. aluminium (aluminum)
• D. mercury

Question 15

Oxygen melts at −218 °C and boils at −183 °C. What state is it in at −249 °C?

• A. solid
• B. liquid
• C. gas

Question 16

Iron melts at 1538 °C and boils at 2862 °C. Over how many degrees is it a liquid?

Answer °C