Which of the following is one way to prevent the corrosion of iron?
a. paint exposed iron p21 with protective paint.
b. protect the iron from polluted air.
c. add carbon to the iron.
d. let the iron develop a natural coat of carbonate.

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?