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Sav [38]
4 years ago
7

Which process produces the energy that powers a solar calculator?

Chemistry
2 answers:
Wewaii [24]4 years ago
7 0

Answer:

For solar energy, Nuclear Fusion occurs. You can research this for more detail.

Explanation:

Tema [17]4 years ago
7 0

Answer:

nuclear fission

Explanation:

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a certain compound was found to contain 54.0 g of carbon and 10.5 grams of hydrogen. its relative molecular mass is 86.0. find t
alukav5142 [94]

Answer:

why don't you try 54 x 10.5/10 1/2 x 86?

Explanation:

it might give you the quickest and fairly accurate answer

7 0
4 years ago
Define Aqua regia and write a short note on it
meriva

Answer:

Explanation:

Aqua regia is a strong and very concentrated acid formed by mixing Hydrochloric acid(HCl) and nitric acid.

The acid is very corrosive due to its formulation and it nearly reacts to dissolve all substances including the unreactive gold metal. It is formed by mixing the two acids in a proportion of 1:3, i.e HCl in 3 parts and nitric acid in 1 part.

The mixture dissolves a wide range of metals

3 0
4 years ago
An aluminum block has a mass of 82.0 g and a volume of 12.8 cm3. what is the block's density to the nearest g/cm3?
aksik [14]
Density is mass over volume. If you put it into a formula it would look like this:

D = \frac{m}{v}

Based on the problem given, you can see that the mass of the aluminum block is 82.0 g and the volume is 12.8 cm3. Just put that into your equation and solve for it:

D = \frac{m}{V}=  \frac{82.0g}{12.8cm^{3} }  = 6.4g/ cm^{3}

The answer is then letter C.


6 0
4 years ago
What is the percentage of magnesium sulfate in MgSO4 x 7H2O.
son4ous [18]
48.78%
Percentage of MgSO4 = mass of MgSO4/ mass of sample (MgSO4. 7H20) and multiply it by 100.

5 0
4 years ago
Jamal does not produce enough insulin to regulate his blood sugar. What part of the endocrine system is most likely being affect
Blizzard [7]

Answer:

B pancreas, since the pancreas secretes insulin

Explanation:

7 0
3 years ago
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