3 C (s) + 2 Al2O3 (s) + energy ⇌ 4 Al (s) + 3 CO2 (g)

Increasing pressure on the system

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Find the missing probability in the table below a.0.10 b.40 c.0.80 d. 0.20