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erastovalidia [21]
4 years ago
14

A student designed an experiment to test

Chemistry
1 answer:
love history [14]4 years ago
5 0

Answer:

D

Explanation:

Because it is the responding variable because you are looking for the weight or the amoount of salt in the water.

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Which of the following is true for the percentage yield of a reaction?
Maksim231197 [3]

Answer:

It is always less than the theoretical yield

Explanation:

For many chemical reactions, the actual yield is usually less than the theoretical yield. This is due to possible loss in the process or inefficiency of the chemical reaction.

6 0
2 years ago
A sample of silver (Ag) contains 3.011x1023 atoms. How much does this
Ugo [173]

Answer:

53.93 g Ag

Explanation:

3.011x1023 atoms  Ag x  <u>   1 mole  Ag     </u>   x   <u>107,8683  grams</u>  =

                                      6.022x10^{23} atoms           1 mole Ag

use the periodic table fo find Ag atomic mass and use Avogadro´s number

3 0
3 years ago
Help me with this please! Do not say "I don't know" to get my points!!!!!!! It is not helpful and disrespectful. THANKS!
MariettaO [177]

no- and na- nano5

na- and na+ nana2

hope this helps

Explanation:

4 0
3 years ago
The diagram shows the movement of particles from one end of the container to the opposite end of the container.
11111nata11111 [884]

The event which is most likely occurring in this scenario is effusion because there is a movement of a gas through a small opening into a larger volume and is denoted as option C.

<h3>What is Effusion?</h3>

This is referred to as the process in which a gas or a substance escapes from a container through a hole of diameter which is usually smaller.

The type of event which is most likely occurring is effusion because of the presence of the small holes in which the balls are made to pass through the center which is why option C was chosen.

Read more about Effusion here brainly.com/question/2097955

#SPJ1

The options are:

  • diffusion because particles move from regions of high concentration to regions of low concentration.
  • diffusion because particles move from regions of low concentration to regions of high concentration.
  • effusion because there is a movement of a gas through a small opening into a larger volume.
  • effusion because there is a movement of a gas through a large opening into a smaller volume
3 0
1 year ago
An internal combustion engine relies primarily on the efficient production of energy by the combination of oxygen (02) and gasol
jeka57 [31]
Answer is: <span>the exact ratio of oxygen to octane for is 12.5 : 1.
</span>Balanced chemical reaction: C₈H₁₈ + 25/2O₂ → 8CO₂ + 9H₂O or multiply by 2:
2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O.
There same number of atoms on both side of balanced chemical reaction: eight carbon atoms, eighteen hydrogen atoms and twenty five oxygen atoms.

7 0
3 years ago
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