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djyliett [7]
3 years ago
10

Adding luminol to water creates a physical or chemical change ​

Chemistry
2 answers:
faust18 [17]3 years ago
7 0
Answer: chemical

not 100% sure
xeze [42]3 years ago
3 0
Chemical the room also needs to be dark
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In which substance does chlorine have an oxidation number of +1?
Anton [14]
The answer is (3) HClO. In the Cl2, chlorine has an oxidation number of zero. In HCl, the oxidation number is -1. In HClO2, the oxidation number is +3. In HClO, it is +1. You can calculate this by using O with oxidation number of -2 and H with +1.
8 0
3 years ago
Sea water is an electrolyte.<br> True<br> False
antoniya [11.8K]
If you are talking about just pure regular water, the answer is false. BUT, some salts dissolved IN WATER, can act as electrolytes. But regular water, no.
8 0
3 years ago
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Balance the following reaction in KOH (under basic conditions). What are the coefficients in for C3H8O2 and KMnO4 in the balance
GrogVix [38]

Answer:

Coefficient of C_3H_8O_2=3

Coefficient of KMnO_4=8

Explanation:

We are given that  a reaction in which C_3H_8O_2 reacts with KMnO_4

We have to find the coefficient of each reactants in balanced reaction

3C_3H_8O_2(aq)+8KMnO_4(aq)\rightarrow 3C_3H_2O_4K_2(aq)+8MnO_2(aq)+2KOH+8H_2O

Coefficient is defined the constant  value multiplied with a reactant in a reaction.

Coefficient of C_3H_8O_2=3

Coefficient of KMnO_4=8

Coefficient of C_3H_2O_4K_2=3

Coefficient of MnO_2=8

Coefficient of H_2O=8

Coefficient of KOH=2

Hence, Coefficient of C_3H_8O_2=3 and coefficient of KMnO_4=8

7 0
3 years ago
What happens when water is added to quicklime? Write two observations.
Neporo4naja [7]

Answer:

1.Most metal oxides are insoluble in water but some of these (e.g. Na2O.

Explanation:

2.: (i) A hissing sound is observed.

1.ii) The mixture starts boiling and lime water is obtained.

3 0
2 years ago
What does the last line of the poem suggest
Klio2033 [76]

Answer:

that the poem needs to be finished heh pog

Explanation:

7 0
3 years ago
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