Question 1
what is the correct formula for ammonium carbonate?
1. nh4(co3)2
2. nh4co3
3. (nh4)2(co3)2
4. (nh4)2co3

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

8. what happens to matter during a chemical reaction