Melting and boiling points

Question 1

Bromine melts at −7 °C and boils at 59 °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)? iron: melts 1538 °C, boils 2862 °C nitrogen: melts −210 °C, boils −196 °C copper: melts 1085 °C, boils 2562 °C mercury: melts −39 °C, boils 357 °C

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

Question 3

Ethanol melts at −114 °C and boils at 78 °C. What state is it in at −149 °C?

• A. solid
• B. liquid
• C. gas

Question 4

Iron melts at 1538 °C and boils at 2862 °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)? nitrogen: melts −210 °C, boils −196 °C copper: melts 1085 °C, boils 2562 °C aluminium (aluminum): melts 660 °C, boils 2470 °C ethanol: melts −114 °C, boils 78 °C

• A. copper
• B. aluminium (aluminum)
• C. ethanol
• D. nitrogen

Question 6

Oxygen melts at −218 °C and boils at −183 °C. What state is it in at −200 °C?

• A. solid
• B. liquid
• C. gas

Question 7

Copper melts at 1085 °C and boils at 2562 °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)? ethanol: melts −114 °C, boils 78 °C sulfur: melts 115 °C, boils 445 °C oxygen: melts −218 °C, boils −183 °C iron: melts 1538 °C, boils 2862 °C

• A. oxygen
• B. ethanol
• C. sulfur
• D. iron

Question 9

Copper melts at 1085 °C and boils at 2562 °C. What state is it in at 2568 °C?

• A. solid
• B. liquid
• C. gas

Question 10

Mercury melts at −39 °C and boils at 357 °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)? iron: melts 1538 °C, boils 2862 °C nitrogen: melts −210 °C, boils −196 °C bromine: melts −7 °C, boils 59 °C aluminium (aluminum): melts 660 °C, boils 2470 °C

• A. aluminium (aluminum)
• B. bromine
• C. iron
• D. nitrogen

Question 12

Nitrogen melts at −210 °C and boils at −196 °C. What state is it in at −162 °C?

• A. solid
• B. liquid
• C. gas

Question 13

Copper melts at 1085 °C and boils at 2562 °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)? nitrogen: melts −210 °C, boils −196 °C iron: melts 1538 °C, boils 2862 °C aluminium (aluminum): melts 660 °C, boils 2470 °C ethanol: melts −114 °C, boils 78 °C

• A. nitrogen
• B. iron
• C. aluminium (aluminum)
• D. ethanol

Question 15

Nitrogen melts at −210 °C and boils at −196 °C. What state is it in at −203 °C?

• A. solid
• B. liquid
• C. gas

Question 16

Mercury melts at −39 °C and boils at 357 °C. Over how many degrees is it a liquid?

Answer °C