answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: When 24.3g of magnesium is combusted with oxygen it yields 40.3g MgO How much magnesiun needs to be burned to yield 12.1g MgO?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why shouldn't magnesium be burned in pure oxygen?

magnesium should not be burned in pure oxygen because the flame will be white or luminous.


When magnesium metal is burned in the presence of oxygen magnesium oxide are different than the individual properties of magnesium and oxygen because magnesium oxide is?

It is a compound.


When a magnesium ribbon is burned and combines with molecular oxygen what does it become?

Magnesium Oxide. MgO


What is the chemical name for the white powder formed when magnesium burned in air?

Magnesium oxide anything that is burned with oxygen (what is left) is called [material you burned] oxide


What did William Crookes conclude from his experiment?

Priestley and Lavoisier discovered oxygen. I think they burned magnesium and it got heavier. The phlogiston theory (the theory that people believed about burning and combustion) could not answer this so they had discovered something. We now know that oxygen from the air is "extracted" when the magnesium is burned. the oxygen then combines with the magnesium and form magnesium oxide. So if you started with 24g of magnesium and burned it, you would end up with about 40g of magnesium oxide.


What happen to the original magnesium after it has been burned?

If completely burnt (in excess of oxygen), all the magnesium will be converted to magnesium oxide.


Why is magnesium oxide white?

magnesium is a purply substance. Although when this substance is burned with oxygen it becomes Magnesium Oxide. This chemical then turns into a black liquidy colour. The word equation for this experiment is: magnesium + Oxygen = Magnesium Oxide


Why does magnesium get heavier when its burned?

What happens when magnesium burns? What do you need for magnesium to burn? Will magnesium burn if you have it in a closed container? No. Why not? It needs air. Why does it need air? There is oxygen in the air. Magnesium needs oxygen to burn. So, when magnesium burns, you start with magnesium and end up with a compound that contains both magnesium and oxygen. Magnesium has an atomic weight of 24. Oxygen has an atomic weight of 16. So if you start out with 24 grams of Magnesium you should end up with 40 grams of Magnesium Oxide.


Why is water produced when hydrogen is burned?

The combustion of hydrogen requires oxygen, which is supplied by the surrounding air. When hydrogen is combusted, it reacts with oxygen in the equation: 2H2 + O2 --> 2H2O with water (H2O) being the product


What is the balanced chemical equation for the reaction between magnesium and oxygen?

WORD EQUATION: Magnesium + Oxygen --> Magnesium oxide SYMBOLS: 2Mg + O2 --> 2MgO


What is the new substance when magnesium is burned?

Assuming Oxygen is the oxidizing element: 2Mg + O2 -> 2MgO + energy So your answer is MgO or Magnesium oxide or Magnesia


What is the chemical equation when magnesium burns?

The magnesium is burned and reacts with the oxygen in the air. 2Mg + O2 → 2MgO Magnesium + Oxygen gas → Magnesium oxide