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Sholpan [36]
3 years ago
8

The gas formed when coal is heated in the absence of air_____________

Chemistry
1 answer:
aleksandr82 [10.1K]3 years ago
6 0
The anser is- Carbon dioxide
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If the H3O is 4.950 x 10-12 what is the ph?
romanna [79]

Answer:

pH = 11.3

Explanation:

From the question given above, the following data were obtained:

Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M

pH =.?

The pH of a solution is defined by the following equation:

pH = –Log [H₃O⁺]

Thus, with the above formula, we can obtain the pH of the solution as follow:

Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M

pH =.?

pH = –Log [H₃O⁺]

pH = –Log 4.950×10¯¹²

pH = 11.3

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3 years ago
And non-flammable gases<br> Noble gases are<br> that have low chemical
gtnhenbr [62]

Answer:

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  • The full <u>valence electron shells</u><u> </u>of these atoms make noble gases extremely <u>stable</u><u>.</u>
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<u>electrons.</u>

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3 years ago
What is the colour of Bromine
nydimaria [60]
Reddish brown colour
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A student drops some metal paper clips in a box of sand. The student uses a magnet to separate the metal paper clips from the sa
Dmitriy789 [7]

Answer:

compound

Explanation:

because now there are one together

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If there are three methyl groups on the same carbon, what is the prefix<br> used?
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Answer:

tri

Explanation:

1-nothing

2-di

3-tri

- Hope that helps! Please let me know if you need further explanation.

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