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asambeis [7]
4 years ago
8

What occurs when ions from the the sun strike air molecules

Chemistry
1 answer:
damaskus [11]4 years ago
6 0
Auroras occur when ions from the Sun strike air molecules, causing them to give off bright colors of light.-google
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What is invection or the definition
LUCKY_DIMON [66]

Answer:

here are some synonyms of invective are abuse, billingsgate, obloquy, and vituperation.

5 0
3 years ago
The probability that a person has immunity to a particular disease is 0.6. Find the mean number who have
gogolik [260]

Answer:

20

Explanation:

12 divide by 0.6 equal to 20 mean

7 0
4 years ago
Who can write an essay
vampirchik [111]

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anyone you just have to know how

Explanation:

6 0
2 years ago
In the reaction below, 22 g of H2S with excess
BartSMP [9]

Answer:

24%

Explanation:

From the question, the limiting reactant is H2S.

The reaction equation is;

2H2S + O2 → 2S + 2H2O

Number of moles of H2S reacted = 22g/34 g/mol = 0.647 moles

According to the reaction equation;

2 moles of H2S yields 2 moles of sulphur

0.647 moles of H2S yields 0.647 moles of sulphur

So;

Theoretical yield of sulphur = 0.647 moles * 32 g/mol = 20.7 g

Actual yield = 5 g

% yield = actual yield/theoretical yield * 100

% yield =5 g/20.7 g * 100

% yield = 24%

7 0
3 years ago
Which of the following is a list of the minimum amount of data needed for determining the molar enthalpy of solution of KCl(s) i
Gre4nikov [31]

Answer:

 (C) Mass of KCl(s), mass of H20, initial temperature of the water, and final temperature of the solution

Explanation:

molar enthalpy of solution of KCl(s) is heat evolved or absorbed when one mole of KCl is dissolved in water to make pure solution . The heat evolved or absorbed can be calculated by the following relation.

Q = msΔt where m is mass of solution or water , s is specific heat and Δt is change in temperature of water .

So data required is mass of water or solution , initial and final temperature of solution , specific heat of water is known .

Now to know molar heat , we require mass of solute or KCl dissolved to know heat heat absorbed or evolved by dissolution of one mole of solute .

3 0
3 years ago
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