Chemistry, 25.11.2021 15:40 mp515

8)
What mass of hydrogen is needed to react with 32 g of copper oxide?
CuO + H2 → Cu + H2O

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questions and answers1)what mass of hydrogen is needed to react with 32 g of copper oxide?cuo + h2 ? cu + h2o2)what mass of hydrogen is produced when 195 mg of potassium is added towater?2 k + 2 h2o ? 2 koh + h23)what mass of magnesium oxide is formed when 6 g of magnesium reacts withoxygen?2 mg + o2 ? 2 mgo4)the pollutant sulphur dioxide can removed from the air by reaction

Question: 1)What Mass Of Hydrogen Is Needed To React With 32 G Of Copper Oxide?CuO + H2 ? Cu + H2O2)What Mass Of Hydrogen Is Produced When 195 Mg Of Potassium Is Added Towater?2 K + 2 H2O ? 2 KOH + H23)What Mass Of Magnesium Oxide Is Formed When 6 G Of Magnesium Reacts Withoxygen?2 Mg + O2 ? 2 MgO4)The Pollutant Sulphur Dioxide Can Removed From The Air By Reaction

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1)What mass of hydrogen is needed to react with 32 g of copper oxide?

CuO + H2 ? Cu + H2O

2)What mass of hydrogen is produced when 195 mg of potassium is added to

water?

2 K + 2 H2O ? 2 KOH + H2

3)What mass of magnesium oxide is formed when 6 g of magnesium reacts with

oxygen?

2 Mg + O2 ? 2 MgO

4)The pollutant sulphur dioxide can removed from the air by reaction with

calcium carbonate in the presence of oxygen. What mass of calcium

carbonate is needed to remove 1 tonne of sulphur dioxide?

2 CaCO3 + 2 SO2 + O2 ? 2 CaSO4 + 2 CO2

5)5.00 g of a mixture of MgSO4.7H2O and CuSO4.5H2O was heated at 120°C

until a mixture of the anhydrous salts was formed, which weighed 3.00 g.

Calculate the percentage by mass of MgSO4.7H2O in the mixture?

Answer from: Quest

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation:

Answer from: Quest

Elias is almost correct. he just got it backwards.the correct answer is that it demonstrates elastic potential energy transforming into kinetic energy.

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8)
What mass of hydrogen is needed to react with 32 g of copper oxide?
CuO + H2 → Cu + H...