Write the expression for the equilibrium constant Keq for the reaction below:

2CO(g) + O2(g) ⇔ 2CO2(g)

a. [CO2] / [CO] [O2]

b. [CO]2 / [CO2]2 [O2]

c. [CO2]2 / [CO]2 [O2]

d. [CO]2 [O2] / [CO2]2

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.

answer; i believe that the correct answer is (c) explore the outer planets; / plz check good luck

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

let that person have a turn to speak : )