1. _ SnO2 + _H2 → _ Sn +
H20
3 is the coefficient of Sn02
3 is the coefficient of H2
2 is the coefficient of Sn
0 2 is the coefficient of H20
None of the above

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

How do you convert 4 mmol of bromobenzene to ml?

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