1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rina8888 [55]
2 years ago
6

Help its due soon i need to get this right to pass the class

Chemistry
2 answers:
Vladimir79 [104]2 years ago
5 0

Answer: A

Explanation: Because the way that a generator works is moving electric current around a wire and using magnets to make more energy.

Igoryamba2 years ago
4 0

Answer:

the answer I am pretty sure is A

Explanation:

Because the way that a generator works is moving electric current around a wire and using magnets to make more energy. please tell me if I am wrong.

You might be interested in
What happens to a reducing agent during a redox reaction?
Nuetrik [128]
Reducing agent is an compound/atom, that loses an electron and is oxidized.

0.........+I.............+II............0
Ca + 2HCl ----> CaCl₂ + H₂

Calcium is oxidized --- it's reducing agent (reductant).
Hydrogen is reduced --- HCl is oxidizing agent.
7 0
3 years ago
If you were working in the lab, what would be the main reason for collecting and treating the waste from this titration experime
Neporo4naja [7]
Medical care or know how to improve it
6 0
3 years ago
To what volume (in mL) would you need to dilute 20.0 mL of a 1.40 M solution of LiCN to make a 0.0880 M solution of LiCN?
CaHeK987 [17]

Answer:

To 318.18 mL would you need to dilute 20.0 mL of a 1.40 M solution of LiCN to make a 0.0880 M solution of LiCN

Explanation:

Dilution is the reduction of the concentration of a chemical in a solution and consists simply of adding more solvent.

In a dilution the amount of solute does not vary. But as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

In a solution it is fulfilled:

Ci* Vi = Cf* Vf

where:

  • Ci: initial concentration
  • Vi: initial volume
  • Cf: final concentration
  • Vf: final volume

In this case:

  • Ci= 1.40 M
  • Vi= 20 mL
  • Cf= 0.088 M
  • Vf= ?

Replacing:

1.40 M* 20 mL= 0.088 M* Vf

Solving:

Vf=\frac{1.40 M* 20 mL}{0.088 M}

Vf= 318.18 mL

<u><em>To 318.18 mL would you need to dilute 20.0 mL of a 1.40 M solution of LiCN to make a 0.0880 M solution of LiCN</em></u>

<u><em></em></u>

7 0
3 years ago
A solution of salt water is boiled. The water evaporates and solid salt remains. Which statement is true?
kow [346]

The answer would be C.  

The salt and the water have both undergone physical changes.

Hope this helps!

5 0
3 years ago
Read 2 more answers
Which of the following does NOT indicate that a chemical change may have taken place?
labwork [276]

The following does NOT indicate that a chemical change may have taken place is fracture formation. A chemical change happens when the substance changes its physical state and composition resulting from a chemical reaction. This chemical reaction may either give off or absorb energy. A change in color is a chemical change. For example, litmus paper turns to red when placed in an acid solution. Production of gas is a chemical change. For example, adding hydrochloric acid to the tiles of the bathroom gives a hissing sound with gases given off. Formation of a precipitate is also a chemical change. Change in shape is not a chemical change.

<span> </span>

3 0
3 years ago
Read 2 more answers
Other questions:
  • An empty 10-ml volumetric flask weighs 10.267 g. after filling to the mark with distilled water at 20°c, the mass is 20.219 g. w
    13·1 answer
  • Which region of the periodic table shown here contains elements that are easiest to oxidize?
    5·2 answers
  • What color is a carrot
    9·2 answers
  • A balloon has a volume of 10,500 liters, and the temperature is 15°C. If the temperature were -25°C, what would the volume of th
    10·2 answers
  • How much iron can be recovered from 25 grams of Fe2O3
    14·2 answers
  • Please help me I will give you the brain thing and extra points. 2/9<br> image below
    10·2 answers
  • If magnesium and nickel were used as electrodes to construct an electrochemical cell like the one shown at right, which metal wo
    14·1 answer
  • How did dmitri mendeleev arrange the periodic table.
    8·1 answer
  • Plssss help i am giving out a lot of points
    14·1 answer
  • How many moles are equal to 8.44 x 1023 atoms of sulfur?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!