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mote1985 [20]
3 years ago
12

25 POINTS!

Chemistry
1 answer:
ryzh [129]3 years ago
4 0

Answer: The Answer is B. Energy can not be created nor destroyed.

Explanation:

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Which of the following forms of oxygen can undergo disproportionation?
Akimi4 [234]
<span>disproportionation is a type of redox reaction in which an element can undergo both oxidation and reduction.

Let's take a look at the choices:
First we have the oxide ion. Oxide ion has a charge of -2 which is the lowest charge that an oxygen atom can have. Therefore, an oxide ion cannot be further reduced, so this choice is not correct.
Next we have the peroxide ion. The oxygen has a charge of -1 which means it can be further reduced. So, this choice is acceptable
Last but not least, we have the superoxide ion. The oxygen has a charge of -1/2 which means it can be further reduced. So, this choice is also acceptable.

Based on this, we have two accepted choices which are b and c.</span>
5 0
3 years ago
At 25°C 12 M H202 is decomposed after 30 minutes the concentration of the H2O2 is found to be 9.5 M what is the average reaction
Bess [88]
The decomposition reaction of hydrogen peroxide:
2 H₂O₂(aq) →  2 H₂O(l) + O₂(g)
The order of reaction is : first order reaction.
[H₂O₂]₀ = 12 M at time = 0
[H₂O₂] = 9.5 M at time = 30 minutes
Average reaction rate = - (Δ[reactants] / Δt) 
                   = - (final reactants conc. - initial reactants conc.) / Δt
                   = - (9.5 M -12 M) / (30 min - 0 min) 
                   = 0.083 mol / L.min
8 0
3 years ago
12. Which formula shows a substance that is not molecular?
RoseWind [281]

Answer:

the answer is H ..............

3 0
3 years ago
How is the weathering of rocks by water different from the weathering of rocks by ice?
ehidna [41]

Answer:

The formation of ice can also break rocks. If water gets into a crack in a rock and then freezes, it expands and pushes the crack further apart. When the ice melts later, water can get further into the crack. When the water freezes, it expands and makes the crack even bigger.

Explanation:

6 0
3 years ago
WHEN I SAY I NEED HELP ASAP !!!
sweet [91]

Answer:

monoxide

dioxide

trioxide

tetroxide

pentoxide

hexoxide

heptoxide

octoxide

nonoxide

Explanation:

Just the way it is. If there is an -a or -o infront of the oxide(or another substance that starts with vowel), the a is often dropped.

4 0
3 years ago
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