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DiKsa [7]
3 years ago
15

What type of wave moves the audio and visual signals?

Chemistry
1 answer:
aev [14]3 years ago
7 0

Answer:

your answer is B

Explanation:

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The effectiveness of nitrogen fertilizers depends on both their ability to deliver nitrogen to plants and the amount of nitrogen
densk [106]

Answer:

Ammonia > Urea > Ammonium nitrate > Ammonium sulphate

Explanation:

Percentage by mass of nitrogen in NH3:

Molar mass of NH3= 17 g/mol

Hence % by mass = 14/17 × 100 = 82.35%

% by mass of NH4NO3

Molar mass of NH4NO3 = 80.043 g/mol

Hence; 28/80.043 × 100 = 34.98%

% by mass of (NH4)2SO4;

Molar mass of (NH4)2SO4= 132.14 g/mol

Hence; 28/132.14 × 100 = 21.19%

% by mass of CH4N2O

Molar mass of urea = 60.0553 g/mol

Hence 28/60.0553 × 100 = 46.62%

8 0
3 years ago
5. How many molecules are in 0.550 moles of N2O5?
Mandarinka [93]
2.41 molecules, should be it
8 0
3 years ago
Which characteristic would you predict from a solution that has a pH of 5?
AlexFokin [52]
With a pH of five, it would mean that this substance is a weak acid one would also it expect it would be sour.
4 0
3 years ago
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What is chemistry????????????????
labwork [276]
Chemistry is the branch of science that deals with the identification of the substances of which matter is composed the investigation of their properties and the ways in which they interact, combine, and change and the use of these processes to form new substances.
8 0
3 years ago
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34 atoms of carbon react with 22 molecules of hydrogen gas. How many molecules of methane will be formed & what will be left
pychu [463]
Each carbon atom will react with 4 hydrogen atoms to form methane (C H_{4}) Since there are 2 hydrogen atoms in a hydrogen molecule (H_{2}) then each carbon atom will react with 2 hydrogen molecules. Since there are 22 hydrogen molecules half as many methane molecules will be formed, so 11. Then we can subtract 11 from 34 to find the number of carbon atoms left over.

So in summary, 11 methane molecules will be formed and there will be 23 carbon atoms left over.
5 0
3 years ago
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