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sukhopar [10]
3 years ago
7

In the compound CO2, how many lone pairs are on the central atom?

Chemistry
1 answer:
Cloud [144]3 years ago
4 0
There are 4 lone pairs of electrons present in the carbon dioxide molecule 
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The chemical name for the compound formula NaCl is?
Mandarinka [93]

Answer:

The chemical name for the compound formula NaCl is sodium chloride.

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A sample of sulfurous acid (H2SO3) has a mass of 1.31 g.
lakkis [162]

Answer:

a) 2 (H+) ions

b) 1 (SO3²-) ions

c) 1.36 × 10^-22 grams.

Explanation:

According to this question, sulfurous acid has a chemical formula; H2SO3. It is made up of hydrogen and sulfite ion. Hydrogen ion (H+) is the cation while sulfite ion (SO32-) is the anion.

Based on the chemical formula, there are 2 moles of hydrogen ions that reacts with 1 mole of sulfite ion as follows:

2H+ + SO3²- → H2SO3

Hence;

- there are 2 hydrogen ions (2H+) present in H2SO3.

- there is 1 sulfite ion (SO3²-) present in H2SO3.

c) The mass of one formula unit of H2SO3 is calculated thus:

= 1.008 (2) + 32.065 + 15.999(3)

= 2.016 + 32.065 + 47.997

= 82.08 a.m.u

Since, 1 gram is = 6.02 x 10^23 a.m.u

82.08 a.m.u = 82.08/6.02 × 10^-23

= 13.6 × 10^-23

= 1.36 × 10^-22 grams.

6 0
3 years ago
What happens to the event horizon when a larger star “dies”?
Neporo4naja [7]
Black hole is likely to spin
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4 years ago
Please select the word from the list that best fits the definition
nika2105 [10]

An occluded front is well known to bring a large amount of rain and snow (Option F).

<h3>What is an occluded front?</h3>

An occluded front is a mass of air capable of bringing precipitation in the form of liquid water (rain) or snow.

This meteorological phenomenon (occluded front) is formed by warm air trapped with cold air.

In conclusion, an occluded front is well known to bring a large amount of rain and snow (Option F).

Learn more about occluded front here:

brainly.com/question/2432375

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2 years ago
A physical change is a change to a sample of matter in which -
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Answer:

its FALSE

Explanation:

FAKE   ITS NOT REAL

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