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Liono4ka [1.6K]
4 years ago
11

Classify each change as physical or chemical.

Chemistry
1 answer:
trasher [3.6K]4 years ago
4 0

A chemical

B physical

C physical

D Chemical

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When potassium hydroxide and barium chloride react, potassium chloride and barium hydroxide are formed. The balanced equation fo
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Answer:

The answer to your question is letter C.

Explanation:

Reaction

Potassium hydroxide = KOH

Barium chloride = BaCl₂

Potassium chloride = KCl

Barium hydroxide = Ba(OH)₂

           KOH   +   BaCl₂    ⇒    KCl   +   Ba(OH)₂

         Reactant        Elements       Products

               1                     K                      1

               1                     Ba                    1

               2                    Cl                     1  

                1                     H                    2

                1                     O                    2

The reaction is unbalanced

        2KOH   +   BaCl₂    ⇒   2KCl   +   Ba(OH)₂

         Reactant        Elements       Products

               2                     K                     2

               1                     Ba                    1

               2                    Cl                     2  

               2                      H                    2

               2                     O                    2

Now, the reaction is balanced

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How many hours per year does a high school student spend in school?
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Around 1260 hours

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Which kind of substance needs more energy to undergo an increase of 25 degrees Celsius something with a high or low specific hea
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