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lesya [120]
2 years ago
15

Which reaction is an oxidation-reduction reaction?

Chemistry
1 answer:
sweet [91]2 years ago
5 0

Answer:

pl

saponification palmitate

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Atoms of elements that are in group 15 with what charge
liq [111]

Answer:

The elements in group 13 and group 15 form a cation with a -3 charge each.

8 0
3 years ago
Alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. It can be
vlabodo [156]

Answer:

The theoretical yield of alum is 19.873 grams and percent yield for this alum synthesis is 45.33%.

Explanation:

Mass of bottle = 10.221 g

Mass of bottle with aluminium pieces = 11.353 g

Mass of aluminium = 11.353 g - 10.221 g = 1.132 g

Mass of alum and bottle = 19.230 g

Mass of alum =  19.230 g - 10.221 g = 9.009 g

Experimental yield of alum =  9.009 g

Theoretical yield of alum:

2Al(s) +2 KOH(aq) +4H_2SO_4(aq)+10 H_2O(l) \rightarrow 2 KAl(SO_4)_2.12 H_2O(s)+3H_2(g)

Moles of aluminium = \frac{1.132 g}{27 g/mol}=0.041926 mol

According to reaction, 2 moles of aluminum gives 2 moles of alum.

Then 0.041926 mol aluminium will give :

\frac{2}{2}\times 0.041926 mol=0.041926 mol of alum.

Mass of 0.041926 moles of alum:

0.041926 mol × 474 g/mol= 19.873 g

Theoretical yield of alum = 19.873 g

Percentage yield:

\% Yield =\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100

Percentage yield of the alum:

\% Yield =\frac{ 9.009 g}{19.873 g}\times 100=45.33\%

The theoretical yield of alum is 19.873 grams and percent yield for this alum synthesis is 45.33%.

7 0
3 years ago
Advantages of solar energy
erastova [34]
Renewable energy source
reduces electric bills
low maintenance costs
reduced needs for fossil fuels and foreign oils
8 0
3 years ago
Read 2 more answers
88.06 meters to centimeters
Hunter-Best [27]

Answer:

8806cm

Explanation:

* by 100

8806cm

4 0
2 years ago
What physical and social systems are involved in the service industry
const2013 [10]

Answer:

Hey mate.....

Explanation:

This is ur answer........

<em>For example, the communications industry includes all of the physical and social systems that produce books, newspapers, magazines, radio and television broadcasts, billboard advertisements, Internet websites, telephones, and telecommunications, such as the GPS.</em>

<em></em>

Hope it helps!

Brainliest pls!

Follow me! :)

6 0
3 years ago
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