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Lera25 [3.4K]
2 years ago
13

How are different elements distinguishable from one another? (Check all that apply.)

Chemistry
1 answer:
Kazeer [188]2 years ago
7 0
The correct answer to this question is the unique atomic number which would be B
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Difference between fission and fusion?
algol13
The difference is the following: Fission is when a heavy nucleus is very unstable and is splitted into two lighter nuclei. Fusion is in a sense the contrary process: two light nuclei combine and release more energy
4 0
3 years ago
Click in the answer box to activate the palette. Use the half-reaction method to balance the following equation in acidic soluti
Rzqust [24]

Answer:

The balanced reaction in the acidic medium is:

2MnO4^-+3CN^-+2H^+\rightarrow 2MnO_2+H_2O+3CNO^-

Explanation:

CN^- + MnO4^-\rightarrow CNO^- + MnO_2

1) CN^-\rightarrow CNO^- ( oxidation)

Balance oxygen by adding water :

CN^-+H_2O\rightarrow CNO^-

Now , balance hydrogen by adding hydrogen ions on the side where hydrogen are less.

CN^-+H_2O\rightarrow CNO^-+2H^+

Add electrons to balance charge where positive charge is more.

CN^-+H_2O\rightarrow CNO^-+2H^++2e^-..[1]

2) MnO4^-\rightarrow MnO_2 (reduction)

Balance oxygen by adding water :

MnO4^-\rightarrow MnO_2+2H_2O

Now , balance hydrogen by adding hydrogen ions by adding them on the side where hydrogen are less.

MnO4^-+4H^+\rightarrow MnO_2+2H_2O..[2]

Add electrons to balance charge where positive charge is more.

MnO4^-+4H^++3e^-\rightarrow MnO_2+2H_2O..[2]

3 × [1] + 2 × [2]

The balanced reaction in the acidic medium is:

2MnO4^-+3CN^-+2H^+\rightarrow 2MnO_2+H_2O+3CNO^-

5 0
3 years ago
Coal, like graphite is composed of carbon. Unlike graphite, coal is formed from decayed,once-living matter. Is it a mineral? Ple
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No coal is a rock made from metamorphism
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3 years ago
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Yes baking soda is dissolved in vinegar and bubbles appear is a CHEMICAL CHANGE .
8 0
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Answer:

carbon

Explanation:

Carbon forms compounds that make up about 18 percent of all the matter in living things. The processes by which organisms consume carbon and return it to their surroundings constitute the carbon cycle.

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2 years ago
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