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den301095 [7]
3 years ago
14

What is the pH of a 0.0001 M aqueous solution of HCI?

Chemistry
1 answer:
IgorLugansk [536]3 years ago
4 0
PH=4
-log(0.0001)=4
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The main factor that influences the direction of any periodic trend across a period is ______.
aalyn [17]

Answer:

The correct option is B

Explanation:

The number of valence electron(s) increases across the period and thus influences the direction of periodic trend of electronegativity, electron affinity and ionization energy across the period. Thus, making option B the answer.

It should be noted that option A is wrong because elements in the same period generally have the same number of electron shells and thus the distance of this shells from the nucleus remains the same throughout the same period and thus option C is also wrong. Option D is wrong because the periodic trends have to do with chemical reactions which actually involves electrons and not protons.

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2 years ago
How many moles of oxygen gas react to yield 0.200 mole water? . . C5H12(g) + 8 O2(g) = 5 CO2(g) + 6H2O(g)
Harlamova29_29 [7]
C5H12(g) + 8 O2(g) = 5 CO2(g) + 6H2O(g) 
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Therefore, there will be 0.267 moles of O2 gas required to yield 0.2 moles of H20.


I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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4 0
3 years ago
How do everyday activities like driving a car and using electricity lead to global warming
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Ahh. The chain reaction.
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You know when you are surfing the web, your parents tell you, or you surf the web, that you see some things like "STOP GLOBAL WARMING?" 
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Well, let's see about the chain reaction...
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You see, where does our energy come from? 
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Yes, windmills and solar cells...
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but also nuclear and power plants, no?
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The power plants emit carbon dioxide that contribute to global warming.
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Now, cars do the same. One car may not seems like a lot of carbon dioxide... 
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But... this many cars multiplied by 9 trillion times 9 trillion and much more... is...

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wait what the question about

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