2.34mL of a gas applies a pressure of 0.74atm at a temperature of 16.7°C. What is the pressure of the gas if the volume is changed to 4.72mL and the temperature to 60.3°C? Give your answer with
3 decimal places.

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

Idon’t understand this page, can someone ?

1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →