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mihalych1998 [28]
4 years ago
10

Convert 2.8 pounds to kg

Chemistry
2 answers:
Nikitich [7]4 years ago
6 0
2.8 pounds =
1.27 kilograms
Pani-rosa [81]4 years ago
5 0

Answer:

1.27006 kg

Explanation:

1 lb is equal to 0.907185 kg

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Write the example of solid liquid and gas separately ​
zysi [14]

Answer:

Solid = rocks or other hard stuff

Liquid = water or mild or other stuff likt that

7 0
2 years ago
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When a sample of gas is cooled, it condenses into a liquid. In which of the following ways do the molecules of the original gas
Amanda [17]
<span>c. The molecules are closer together as a gas than they do as a liquid.</span>
3 0
4 years ago
A student needs to standardize a base solution by titration with an acid solution of known concentration. She finds the volume o
kondor19780726 [428]

The steps usually involves adding the known solution (the titrant) to a known quantity of the unknown solution (the analyte) until the reaction is complete which can be understood in detail as below with the help of through out process of titration.

<h3 /><h3>What is Titration ?</h3>

A titration is a technique used to work out the concentration of an unknown solution based on its chemical reaction with a solution of known concentration.

Steps in order to determine the concenteration of base solution ;  

(Acid-Base Titration)

  • Choose the titrant.
  • Choose the titrate.
  • Select the normality of the titrate.
  • Choose the volume of the liquid to be pipetted out.
  • Select the indicator.
  • Start titration.
  • End point is noted at the colour change of the solution.
  • From the final reading the normality of titrant can be calculated by the equation:

                                          ​N₁V₁=N₂V₂

  • After finding the normality, the amount of given substance in the whole of the given solution can be calculated by the equation:

          ​Mass = Equivalent weight  x  Normality \  Volume  {1000}

Learn more about titration here ;

brainly.com/question/15365870

#SPJ1

6 0
3 years ago
Which acid-base pair will always undergo a reaction that produces a neutral solution? answer?
Vesna [10]
Strong acid on combining with strong base will always give neutral solutions. Consider the following example for the same

HCl            +                    NaOH           ↔             NaCl        +            H2O
(strong                          (strong
   acid)                             base)

In above case, the resultant solution is neutral in nature. 

On other hand, weak acid will react with strong base to form salt and water. But the solution will be basic in nature. Also, strong acid will react with weak base to form salt and water. But the solution will be acidic in nature
3 0
3 years ago
Can someone help me please ? Click the picture
bixtya [17]

Answer:

Because it lose detectable mass.

Explanation:

Law of conservation of mass states that substances involved in chemical reaction do not lose or gain any mass. So the above reactions don't demonstrate the law of conservation of mass because it lose mass

7 0
3 years ago
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