What happens when 1. Iron is reacted with moist air.
2. hydrogen is reacted with oxygen.
3. sodium is reacted with Caroline. ​

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

How many neutrons does an element have if its atomic number is 50 and its mass number is 166