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Oduvanchick [21]
3 years ago
15

Based on the information in the passage, what is true of gases?

Chemistry
1 answer:
luda_lava [24]3 years ago
7 0
1: True
2: True
3: False
4: False

(Question 2 might not be true, not sure)
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Equations can be balanced by using the half-reaction method. Which step should be completed immediately after finding the oxidat
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After finding the oxidation states of atoms, you identify the half reactions (option c).

The half reactions are given by the change of the oxidation states of the atoms.

For example if Cu is in the left side with oxidation state 0 and in the other side with oxidation state 2+, then there you have a half reaction (oxidation reaction). And if you have O with oxidation state 0 in the left side  and with oxidation state 2- in the right side, there you have other half reaction (reducing reaction).
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3 years ago
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The solubility of acetanilide in hot water (5.5 g/100 ml at 100∘C) is not very great, and its solubility in cold water (0.53 g/
Olin [163]

Answer:

89.4%

Explanation:

Initially, there is 5.0 of the acetanilide in 100 mL of water, then the solution is chilled at 0ºC. The solubility represents the amount that the solvent (water) can dissolve of the solute (acetanilide). So, at 0ºC, 100 mL of water can dissolve till 0.53 g of the compound, the rest will precipitate and will be recovered.

So, the mass that is recovered is 5.0 - 0.53 = 4.47 g

The percent recovery is:

(4.47/5)x100% = 89.4%

8 0
3 years ago
Do oxygen atoms become more stable or less stable when oxygen forms compounds? Explain
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They become more stable because they achieve a full outer shell of valence electrons with the magic number of 8.

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In the equation:<br><br> 23491Pa → 234 92U + X<br><br><br> The X represents a
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Beta particle in the reaction
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3 years ago
If an object has 25 newtons of force pushing from the left and 26 newtons of force pushing from the right the object will
IRISSAK [1]

Answer:

C. move left

Explanation:

The object will move towards the left direction due to the unbalanced forces that are acting on it.

 The resultant force on the object will be 1N in the left direction

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  • When forces acts in opposite directions, they are subtracted
  • The object will move in the direction of the one with the greater force

So;

  Resultant force = 26N - 25N  = 1N

The body moves 1N to the left

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3 years ago
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