Question

3.13 describe each property of the element fluorine as physical or chemical. a. is highly reactive b. is a gas at room temperature c. has a pale, yellow color d. will explode in the presence of hydrogen e. has a melting point of -220 °c

Explanation:

• a. Reactivity involves chemical change, so it's a chemical property.
• b. State at room - temperature is a physical property as it doesn't involve a chemical change.
• c. Color is a physical property as it can be observed without changing the substance chemically.
• d. Reaction with hydrogen causing an explosion is a chemical property as it involves a chemical reaction.
• e. Melting point is a physical property as it's related to a physical state change without altering the chemical composition.

Answer:

a. Chemical property
b. Physical property
c. Physical property
d. Chemical property
e. Physical property