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Goryan [66]
3 years ago
6

According to the hypothesis the solar system formed from a cloud of dust and gas

Chemistry
2 answers:
pentagon [3]3 years ago
6 0

It not asking it’s actually saying blank etc

katrin2010 [14]3 years ago
5 0

I assume this is a true or false question. I would say true

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Give the molecular geometry and number of electron groups for sf4. give the molecular geometry and number of electron groups for
Andrei [34K]

Answer:

5 electron groups, see saw

Explanation:

During the formation of SF4, the sulfur atom usually bonds with each of four fluorine atoms where 8 of valence electrons are used. The four fluorine atoms have 3 lone pairs of electrons in its octet which will further utilize 24 valence electrons. In addition, two electrons are present as a lone pair on the sulfur atom. We can determine sulfur’s hybridization state by counting of the number of regions of electron density on sulphur (the central atom in the molecule). When bonding takes place there is a formation of 4 single bonds to sulfur and it has 1 lone pair. Looking at this, we can say that the number of regions of electron density is 5. The hybridization state is sp3d.

SF4 molecular geometry is seesaw with one pair of valence electrons. The molecule is polar. The equatorial fluorine atoms have 102° bond angles instead of the actual 120° angle. The axial fluorine atom angle is 173° instead of the actual 180° bond angle.

3 0
2 years ago
QUESTION TWO
igomit [66]

Answer: The scientific method is an empirical method of acquiring knowledge that has characterized the development of science since at least the 17th century. It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation.

Explanation:

Hope this helps. :)

3 0
2 years ago
1. What two types of cells contain chloroplasts?
Vikentia [17]

Answer:

plant cells and eukroyatic algae

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3 years ago
youare given the solution of l!ad nitrate in order to obtaina yellow precipite you should mix with it if a solution a)sulphric a
Fiesta28 [93]

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B. citric acid it just makes sense

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3 years ago
In which region is the substance in both the solid phase and the liquid phase ?
Furkat [3]
In which region is the substance in both the solid phase and the liquid phase ?
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