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kondaur [170]
3 years ago
8

Hydrogen peroxide slowly decomposes in light:

Chemistry
1 answer:
IgorLugansk [536]3 years ago
3 0

Answer:

Explanation: the answer is A

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URGENT!!! What is the balanced form of this equation?
Ostrovityanka [42]

Explanation: This is a reaction of oxidation of H_2O_2 in the presence of acidified KMnO_4. Acidified KMnO_4 is a strong oxidizing agent.

To balance out the H^+ on the reactant side, we write H_2O on the product side.

Balancing out the following reaction gives us:

2MnO_4^-+6H^++5H_2O_2\rightarrow 2Mn^{2+}+8H_2O+5O_2

5 0
3 years ago
chlorine has 7 outer energy level electrons and argon has 8. what is the difference in the reactivity of these two elements?
Lunna [17]
Chlorine is more reactive than argon, because argon is not reactive at all. Chlorine only has to gain 1 valence electron
6 0
3 years ago
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Which is a characteristic of mixtures?
siniylev [52]

Answer:

The correct answer is "They can be separated by physical processes"

Explanation:

The definition of Mixtures is <em>the blending of two or more dissimilar substances</em>.

Mixtures can be divided into those that are homogeneous or heterogeneous meaning that they can be distributed evenly or can't be distributed evenly.

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3 years ago
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The following table shows the symptoms in four patients. Each patient suffers from a different disease.
RideAnS [48]

Answer:

D.  Food poisoning, Bacteria Vomiting, loose stools

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3 years ago
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A second-order reaction starts with an initial concentration of 0.020 M of the reactant. If the rate constant is 1.0x10-3 M-1s-1
telo118 [61]

Answer:

t = 50,000s

Explanation:

Reaction is second order.

Initial conc. [A]o = 0.020 M

Rate constant = 1.0x10-3 M-1s-1

Final conc. [A] = 0.010M

Time = ?

1 / [A] = kt + 1 / [A]o

Substituting the values;

1 / 0.010 = 1.0x10-3 * t + (1/0.020)

100 - 50 = 1.0x10-3 * t

t = 50 / (1.0x10-3)

t = 50,000s

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3 years ago
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