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Nikitich [7]
3 years ago
11

What is the chemical ratio of h2o

Chemistry
2 answers:
ruslelena [56]3 years ago
5 0

Answer:

2:1

Explanation:

2 hydrogen to 1 mole oxygen

Setler79 [48]3 years ago
5 0

Answer:

In water,the ratio of element is 2 moles hydrogen to 1 mole oxygen,or 2:1.

Explanation:

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As you move from left to right across a period, what happens to the atomic radii?
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Answer:

They decrease, because of the stronger effective nuclear charge.

Explanation:

  • Atomic radii decreases from left to right across a period.
  • This is due to the increase in the no. of protons and electrons through the period.
  • One proton has a greater effect than one electron.
  • So, electrons are attracted towards the nucleus and resulting in a smaller atomic radii.

<em>Thus, the right choice is: They decrease, because of the stronger effective nuclear charge.</em>

<em></em>

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3 years ago
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The element beryllium (Be, atomic number 4 and atomic mass 9) is right above magnesium (Mg, atomic number 12 and atomic mass 24)
tia_tia [17]

the answer is 8 electrons

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Propenoic acid, C3H4O2, is a reactive organic liquid that is used in the manufacturing of plastics, coatings, and adhesives. An
Shkiper50 [21]

Answer:

C = 39%

H = 5.43%

Explanation:

Firstly, we calculate the number of moles of each.

For carbon, we use carbon iv oxide

Mass here = 0.636g

Number of moles of carbon iv oxide = mass of carbon iv oxide ÷ molar mass of carbon iv oxide. Molar mass = 44g/mol

Number of moles = 0.636 ÷ 44 = 0.014mole

Since 1 mole of carbon iv oxide contains 1 mole carbon, 0.014 mole of carbon iv oxide is also produced.

Mass of carbon = 0.014 × 12 = 0.173g, where 12 is the a.m.u of carbon.

For hydrogen, we use water .

Mass of water = 0.220g

No of moles of water = 0.22 ÷ 18 = 0.012 mole

1 mole of water has two moles of hydrogen, thus the amount of hydrogen produced = 0.012 × 2 = 0.024mole

Mass of hydrogen produced = 0.024 × 1 = 0.024g

The percentage composition are as follows:

Carbon = 0.173/0.442 × 100 = 39%

Hydrogen = 0.024/0.442 × 100 = 5.43%

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3 years ago
8.03 Lab Report Data Answers (I only need the Data as I do not have the time to get the materials and do it myself but I don't n
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Answer:

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Explanation:

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3 years ago
Am I correct?
Delvig [45]
Yes. You are correct
7 0
3 years ago
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