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iVinArrow [24]
3 years ago
11

How many moles of oxygen react with 7.3 mole of iron?4Fe + 302 → 2Fe2O3​

Chemistry
1 answer:
Alexandra [31]3 years ago
4 0

Explanation:

7.3*3=21.9

21.9/4=5.475

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Write an importance of endothermic reactions​
KengaRu [80]

Answer:

the uses of exothermic reactions are:

1) lighting of stove

2) self heating cans

3) hand warmers

4) in some case exothermic process can be used to cook food such as rice  (by adding calcium oxide to water heat is evolved and it helps to cook food )

Explanation:

hope this helps you pls mark me as brainilst

8 0
3 years ago
2. A 90 g bag of trail mix is contains 22% nuts, 35% granola, 18% dried fruit. The rest is chocolate chips.
elena-14-01-66 [18.8K]
There are:

19.8g of nuts (90x0.22=19.8)
31.5g of granola (90x0.35=31.5)
16.2g of dried fruit (90x0.18=16.2)
22.5g of chocolate chips (90x0.25=22.5)
4 0
3 years ago
The following is an example of which type of chemical reaction?Na (s) + H2O (l) Imported Asset NaOH (aq) + H2 (g)
lora16 [44]

Answer:

The answer to your question is Single replacement

Explanation:

Data

Chemical reaction

                 Na  +  H₂O  ⇒   NaOH  +  H₂

Single replacement  is a chemical reaction in which a metal replaces the cation of a compound.

Decomposition  is a chemical reaction in which a compound forms 2 or more products.

Double replacement  in this chemical reaction two compounds react interchanging their cations and anions.

Combustion in this chemical reaction the reactants must be a compound with carbon and the other oxygen and the products must be carbon dioxide and water.

4 0
3 years ago
Read 2 more answers
Ex of physical Properties
sesenic [268]

Answer:

Explanation:

physical properties include:

colour

shape

size

taste

etc............

6 0
3 years ago
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the formula for sodium hydroxide is NaOH; the formula for potassium hydroxide is KOH. which two elements do you think are contai
Luden [163]

Answer:

oxygen and hydrogen :)

Explanation:

4 0
3 years ago
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