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Katyanochek1 [597]
3 years ago
6

Select the number of valence electrons for hydrogen.

Chemistry
2 answers:
galina1969 [7]3 years ago
7 0

Answer:

Vanlency of hydrogen - 11

Electrons of hydrogen - 1

tankabanditka [31]3 years ago
4 0

Answer:

The answer is: 1

Hope this helps :) <3

Explanation:

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500.0 mL of a gas is collected at 745.0 mmHg. What will the<br> volume be at 760 mmHg?
Natalija [7]

Answer:

490 ml

Explanation:

5 0
3 years ago
Please help with this
zhenek [66]
Im guessing it would be 3.53 × 1023 atoms
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3 years ago
An archer shot a 0.06 kg arrow at a target. The arrow accelerated at 5,000 m/s/s to reach a speed of 50.0 m/s as it left the bow
nordsb [41]
<h3><u>Answer;</u></h3>

C. 300 N

<h3><u>Explanation</u>;</h3>

From Newton second's Law of motion, the resultant force is directly proportional to the rate of change in momentum.

Therefore;

F = ma ; where F is the resultant force, m is the mass and a is the acceleration.

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F = 0.06 kg × 5,000 m/s/s

  <u>= 300 N</u>

8 0
3 years ago
Rank the solutions in order of decreasing [H3O ]. Rank solutions from largest to smallest hydronium ion concentration. To rank i
Usimov [2.4K]

Answer:

0.10M HCN  <  0.10 M HClO  <  0.10 M HNO₂  < 0.10 M HNO₃

Explanation:

We are comparing acids with the same concentration. So what we have to do first is to determine if we have any strong acid and for the rest ( weak acids ) compare them by their Ka´s ( look for them in reference tables ) since we know the larger the Ka, the more Hydronium concentration will be in these solutions at the same concentration.

HNO₃ is a strong acid and will have the largest hydronium concentration.

HCN  Ka = 6.2 x 10⁻¹⁰

HNO₂ Ka = 4.0 x 10⁻⁴

HClO  Ka = 3.0 x 10⁻⁸

The ranking from smallest to largest hydronium concentration will then be:

0.10M HCN  <  0.10 M HClO  <  0.10 M HNO₂  < 0.10 M HNO₃

5 0
4 years ago
Plants and animals are what components ?
Sliva [168]

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things that are living.

7 0
4 years ago
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