The burning of magnesium in air to form magnesium oxide is an example of a chemical reaction . In this chemical reaction there are two reactants ' magnesium and oxygen ' but only one product ' magnesium oxide '. The properties of the product magnesium oxide are entirely different from those of the reactants magnesium and oxygen.

Balanced Equation –

$\purple{\bf{2Mg + O_2 = 2MgO}}$

Physical states –

Magnesium → Mg ( In Solid State)

Oxygen → $\sf{O_2}$ ( Gaseous State)

Magnesium Oxide → MgO ( In Solid State Or White powder)

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5 0

2 years ago

Read 2 more answers

Use this oxidation-reduction reaction to answer questions about half-reactions:

Advocard [28]

Answer:

N, O, R

Explanation:

Thanks for answering bro, you saved me

5 0

3 years ago

How many moles are in 20.0 g of water

Masteriza [31]

Mass = mr x moles

Therefore we rearrange to get

Moles = mass/ mr

Water is H2O so the molecular mass values are
H: 1 , O: 16 (from the periodic table).

We have 2 Hs and 1 O so 1 + 1 + 16 = 18

Mass/ mr = 20/18 = 1.11 moles of water

Hope this helps, feel free to ask if you have any questions :)

7 0

3 years ago