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OLga [1]
11 months ago
5

2. Calculate the atomic mass of the following elements i. Silicon ii. Magnesium iii. Potassium.​

Chemistry
1 answer:
leva [86]11 months ago
5 0

Answer:atomic mass of silicon is 28

magnesium's atomic mass is 24

potassium atomic mass is 39

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Sulfuric acid dissolves and completely dissociates in water and a solvation sphere of water molecules forms around the ions. Thi
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This solute-solvent interaction will release energy into the surroundings and makes the beaker warm.

<u>Explanation:</u>

The sulfuric acid is dissolved in water and it formed a solvation sphere of water molecules around the sulphur ions. So on stirring the beaker is getting warm. As the beaker is getting warm, this means the reaction occuring between sulfuric acid and water is exothermic reaction.

And so the energy is released into the surroundings. The energy released came from the breaking of bonds of sulfuric acid, as the acid is getting dissociated in water.

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3 years ago
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The two south pole ends of two magnets are touching. Which of the following can be concluded?
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C.Work was required by an outside force.

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3 years ago
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Anna35 [415]

Answer:

Explanation:

Take a random sample of nuts from the jar.  Let's take two handfuls, after shaking the jar and mixing the nuts thoroughly.  Separate the nuts into almonds and cashews.  Count each pile, then do the following calculation (these numbers are random, for example only).

                <u> Count</u>   <u>Percentage %</u>

Almonds       38        (38)/(87)x100

Cashews      <u> 49</u>         49/87x100

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Ratio of Almonds to Cashews:  <u>38/49</u>

3 0
2 years ago
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Answer:

50.76 mol H2O.

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So we can say that:

1 mol C6H12O6 --------- 6 mol H2O

8.46 mol C6H12O6 -----x= 8.46 x 6 : 1 = 50.76 mol H20

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2 years ago
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b

Explanation:t not sure

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3 years ago
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