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Anni [7]
4 years ago
8

Which is true about fossil fuels?

Chemistry
2 answers:
m_a_m_a [10]4 years ago
6 0
A. i just did this test
andrew11 [14]4 years ago
4 0
The correct answer would be D. Natural gas and oil came from ancient plants, while coal came from dinosaurs.
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3 years ago
Consider the chemical equation below. Upper M g (upper O upper H) subscript 2 plus 2 upper H upper N upper O subscript 3 right a
masha68 [24]

Answer:

Upper H superscript plus, plus upper O upper H superscript minus right arrow upper H subscript 2 upper O.

Explanation:

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If 61.5 moles of an ideal gas occupies 97.5 liters at 473 K, what is the pressure of the gas, in mmHg?
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Which of the following is an inorganic compound?
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3 years ago
1. How many atoms are there in 2.8 moles of carbon? You must show your work to receive credit.
Zolol [24]

Answer:

The answer to your question is

1.-  1.686 x 10²⁴ atoms

2.- 0.25 moles

Explanation:

1.-

              1 mol ---------------- 6.023 x 10²³ atoms

             2.8 moles ----------  x

              x = (2.8 x 6.023 x 10²³) / 1

              x = 1.686 x 10²⁴ atoms

2.-           1 mol ------------------ 6.023 x 10 ²³ molecules

               x moles -------------  1.50 x 10²³ molecules

              x = (1.50 x 10²³ x 1) / 6.023 x 10²³

              x = 0.25 moles                                                      

6 0
4 years ago
Read 2 more answers
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