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BigorU [14]
3 years ago
11

HELP !!!!!!! ASAP !!!!!!!!!!!!!!

Chemistry
2 answers:
Dmitry [639]3 years ago
4 0
The color changes, heat change, smell change, are a few
timurjin [86]3 years ago
4 0

Answer:

The color changes, heat change, smell change, are a few

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The United States has about which percentage of the world's coal reserves?
aev [14]

Answer:

The United States leads the world with over 260 billion short tons of recoverable coal reserves—28% of total global reserves and 50% more than Russia, which possesses the world's second largest reserves. so the answer would be 28%

Explanation:

5 0
3 years ago
Read 2 more answers
5) How many moles are in 5 Liters of H2 gas?
telo118 [61]
From 5 L to moles, just divide 5 by 22.4. I got 0.22 moles of H2.
From 5 moles to liters, just multiply 5 by 22.4. I got 112 L of H2. 
4 0
3 years ago
Here is a more complex redox reaction involving the permanganate ion in acidic solution
guapka [62]

Answer:

5NO2? + 6H+ + 2MnO4? ? 5NO3? +2Mn2+ + 3H2O

Explanation:

Classify each reactant as the reducing agent, oxidizing agent, or neither

8 0
3 years ago
when an electron moves from a higher orbit to a lower one does it always follow the same path explained​
Ilia_Sergeevich [38]

Yes, electron follows the same path when it absorb and loses energy.

Yes, when an electron moves from a higher orbit to a lower orbit it always follow the same path as it moves from a lower orbit to a higher orbit. When electron absorb energy it has the power to move from lower orbit to higher orbit or energy level.

While on the other hand, when an electron loses that energy, it comes back to its original position from which it moves earlier when it absorb energy so we conclude that electron follows the same path when it absorb and loses energy.

Learn more: brainly.com/question/24962163

8 0
3 years ago
Read 2 more answers
When NH3(aq) is added to Cu2 (aq), a precipitate initially forms. Its formula is:
Rasek [7]
It’s B the cu looses its 2 and passes it to the NH3 that needs a bracket to separate them. The NH3 doesn’t loose its 3 because it’s already a compound!
Hope this helps!
3 0
3 years ago
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