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pashok25 [27]
3 years ago
7

Why is burning fossil fuels negative

Chemistry
1 answer:
Likurg_2 [28]3 years ago
5 0

Answer:

it causes alot of harm to the earth.

Explanation:

earthquakes

an so on

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Which pair of molecules is expected to have the most different properties?
Artyom0805 [142]

Answer:

This question is incomplete

The completed question is below

Which pair of molecules is expected to have the most different properties?

CO and NO

SO₂ and CH₄

The correct answer is SO₂ and CH₄

Explanation:

All the four substances are gases at room temperature.

Carbon monoxide (CO) and nitric oxide (NO) are both reactive oxides. They are both polar and inorganic also, hence should have some similar properties (based on there origin/composition and polarity).

Sulphur dioxide (SO₂) is polar because it's a bent molecule, methane (CH₄) is non-polar because of the tetrahedral shape of it's molecule. Methane is an organic molecule while sulphur dioxide is an inorganic molecule.

From the above, <u>it can be deduced that SO₂ and CH₄ are expected to have different properties</u>. For example, the polarity of SO₂ makes it dissolve in water to form an acidic solution while methane does not dissolve in water and hence doesn't form an acidic solution.

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2 years ago
What was the normal perception of a scientist up until the seventeenth century?
castortr0y [4]
working in a factory to develop new technology wearing a white lab coat working in a laboratory working in the woods to study nature collaborating with groups of peers to discuss ideas
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3 years ago
Why scientists use mass instead of weight for their measurements
QveST [7]
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Describe the principle and process for the manufractured of sulphuric acid witha a well labeled diagram by contact process.
Leno4ka [110]

The steps involved in the manufacture of sulphuric acid by contact process:

(1) Sulphur (or iron pyrites) are burnt in air to form sulphur dioxide.

  S+O2→SO24FeS2+11O2→2Fe2O3+8SO2

(2) Catalytic oxidation of sulphur dioxide to sulphur trioxide.

  2SO2+O2V2O52SO3ΔrHo=−196.6kJ

The reaction is reversible and exothermic.

(3) Sulphur trioxide is dissolved in 98% sulphuric acid to form oleum (fuming sulphuric acid). 

  SO3+H2SO4→H2S2O7

(4) Oleum is diluted with water to form sulphuric acid of desired concentration.

    H2S2O7+H2O→2H2SO4

            and

Manufacture of H2SO4 by contact process involves three steps:

1. Burning of sulphur in air to generate SO2.

2. Conversion of SO2 to SO3 by oxidation with air in the presence of 

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2 years ago
HELP PHYSICAL SCIENCE B PRACTICE TEST FOR FINAL EXAM, CONNEXUS
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