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Vinil7 [7]
3 years ago
7

The primary reason some parts of Earth are hotter than other parties because the hotter parts of Earth

Chemistry
1 answer:
Shtirlitz [24]3 years ago
6 0

Answer: the core

Explanation:

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Determine whether a gas sample was composed of hydrogen or oxygen.
Nuetrik [128]
The test for this is fairly simple.
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How many milliliters of .085 m naoh are required to titrate 25 ml of .072 m hbr to the equivalence point?
SOVA2 [1]
The ML  of 0.85  m NaOH    required   to  titrate  25 ml of  0.72m hbr  to  the  equivalence  point  is calculated  as  follows

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25  x0.072/1000=  0.0018 moles


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from   reacting   equation the  mole ratio  between  NaOH  to  HBr  is  1:1  therefore  the  moles of  NaOH  =  0.0018 moles

volume   =  moles/molarity
0.0018/0.085 =  0.021  L  in Ml  =  0.021  x1000=21.18 Ml  ofNaOH

8 0
3 years ago
How to determine reaction order in reactant?
Artyom0805 [142]
In order to determine, Order of reaction, we have to add all the exponents written in the Chemical form, on the Reactant species.

Hope this helps!
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3 years ago
Which of these is the best evidence that a chemical reactions occurs when coal burns?
laila [671]

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It’s b even check quizzes

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3 years ago
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