Consider the following equilibrium: h2o(g) + co(g) h2(g) + co2(g) a closed container is initially filled with h2o and co. which of the following correctly describes the reaction as it proceeds towards equilibrium?
a. the [co] and [co2] both increase.

b. the [co] decreases and [co2] increases.

c. the [co] increases and [co2] decreases.

d. the [co] and [co2] both decrease.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance