Which formula can represent an alkyne? * O
1. C2H4
O
2. C2H6
O
3. C3H4
O
4. C3H6

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?