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mixas84 [53]
2 years ago
15

Which of the following is the best indication that a chemical change has taken place?

Chemistry
2 answers:
kupik [55]2 years ago
4 0

Answer:

C

Explanation:

It is C because the change is inversible, that means that it is a chemical change.

Ugo [173]2 years ago
3 0
C the change is reversible I think
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I have to do this for homework please help :)
kramer

Answer:

1..... nucleus

2......electron cloud

3.......protons

4........Neutrons

5..........electron

6............electrons

7...............Isotopes

8.....,...........ions

9....................charge

6 0
3 years ago
Honeybee venom is a solution that contains formic acid, which gives the venom an approximate ph of 5.0. which substance is more
Genrish500 [490]
Those substances which has pH less than 5 are more acidic than Honeybee Venom. Some of them are listed below along with their pH scale,

                  1) <span>Acid rain and Tomato Juice has a pH of 4.

                  2) Soda and Orange Juice has a pH of 3.

                  3) Vinegar and Lemon Juice has pH of 2.

                  4) Gastric acid has a pH of 1.

                  5) Battery Acids have pH of zero.</span>
5 0
3 years ago
Help me please and ty
satela [25.4K]

Answer:

it the same side with the other side you fellow the other side

Explanation:

7 0
3 years ago
Read 2 more answers
What is the pH of a 1.7 × 10⁻⁴ M HClO₄ solution?
Mamont248 [21]
Ph= -log[h30]

Ph= -log[1.7x10^-4]

pH= 3.77

pH is acidic
3 0
3 years ago
Write the balanced oxidation-reduction reaction equation for the oxidation of benzoin by ammonium nitrate. 2
Margarita [4]
<span>Benzoin<span> is an organic compound with the formula PhCH(OH)C(O)Ph. It is a hydroxy ketone attached to two phenyl groups.</span><span>

To answer your question, </span><span>the balanced oxidation-reduction reaction equation for the oxidation of benzoin by ammonium nitrate is:

</span>2Ph-C(OH)-C(O)-Ph+NH4NO3 --> 2Ph-C(O)-C(O)-Ph + N2 + 3H2O.</span>

<span>
</span><span>I hope this helps and if you have any further questions, please don’t hesitate to ask again.</span>

7 0
3 years ago
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