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Nonamiya [84]
4 years ago
12

When magnesium metal is heated in air it begins to release large amounts of heat and light. What kind of a reaction is this an e

xample of?
Chemistry
2 answers:
Salsk061 [2.6K]4 years ago
5 0
It is called exothermic reaction because it releases heat and light and it is called combustion reaction because it is reacting and is being oxidised by O2 to MgO. It can also be called as oxidation reaction since Mg is oxidised to MgO.
Ipatiy [6.2K]4 years ago
4 0
If we're talking about endothermic and exothermic reactions, then it is an exothermic reaction, since heat is being released.
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How many grams of S are in 475 g of SO2?
enot [183]

There are 237. 5 g of Sulfur,S in 475 g of SO2?

<h3 />

<h3>Calculation of grams of Sulfur</h3>

From the question, we can say that

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  • The molar mass of oxygen = 16 g/mol

Therefore,

The molar mass for SO2 = 32 + (16 × 2) g/mol  = 64 g/mol

Now,

If 1 mole of SO2 contains 1 mole of S

Then 64 g of SO2, will contain 32g of S;

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475 g of SO2 will give { \frac{ 32g of S) ( 475 g of SO2)}{64 of SO2} }  = 237. 5 g of Sulfur.

Learn more about molar mass here :brainly.com/question/18291695

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