Which one is not required for reaction of nitrogen with hydrogen to form ammonia gas?
1.uv light 2.high pressure
3.high temperature 4.iron catalyst

How is 0.00235 expressed in proper scientific notation? a. 2.35 × 10-3 b. 0.235 × 10-2 c. 2.35 d. 2.35 × 103

Why is carbon ideal for making different compounds?

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand