C(s) + 2H2(g) → CH4(g) C(s) + 2Cl2(g) → CCl4(g)

H2(g) + Cl2(g) → 2HCl(g)

its B

p. s those are the equation breakdown

the second one is
Which statement is true?
✔ The first equation must be reversed and the third equation doubled.

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

What is the mass of 4 molecules of co2

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line