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Aneli [31]
3 years ago
13

Guysss plzzz help currently testing

Chemistry
1 answer:
IRINA_888 [86]3 years ago
6 0
D, because soluability is a physical property
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proton and neutron in region one and electron orbiting in region two is the answer

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What word or two-word phrase best describes the shape of the fluoroform molecule?
Vlad [161]

Answer : The shape of the fluoroform molecule is Tetrahedral.

Explanation :

First we have to calculate the Hybridization of the molecule by formula,

\text{Number of electrons} = \frac{1}{2}[V+H-C+A]

where,

V = Number of valence shell electron in central atom

H = Number of neighboring monovalent atom

C = charge of cation

A = charge of anion

The central atom in this molecule is Carbon, it has 4 electrons in their valence shell.

The neighboring monovalent atoms are one Hydrogen atom and three Fluorine atom.

There is no charge of cation and anion on the given molecule.

V = 4

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C = 0

A = 0

By the above hybridization formula, we get

\text{Number of electrons}= \frac{1}{2}[4+4-0+0] = 4

The number of electron pair = 4

The number of lone pair = 0

The number of electrons is 4, this means that the hybridization is sp^{3} and the geometry of the molecule is Tetrahedral.

The geometry of the molecule is shown below.


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3 years ago
Which of the following actions demonstrates compression of a gas? exhaling air from your lungs lighting a fire turning on an ele
wariber [46]
Exhaling air from your lungs
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30 g of Magnesium and 30 g of Oxygen are reacted,<br> then the residual mixture contains
Alecsey [184]

Answer:

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Explanation:

According to the above reaction ,

28.6g(2mole) Mg combine with 32g (1mole) of O2 to give 80.6g (2 mole) of MgO.

thus,

30g Mg will combine with 20g of O2 to produce 50g MgO and 10gO2 will remain unreactive.

I hope it's helpful!

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3 years ago
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