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3 years ago

Select all the statements that correctly describe a solution. Multiple select question.

Chemistry

1 answer:

motikmotik3 years ago

8 0

Answer:

B, D, C

Explanation:

the solution may have more than one solute, a solution is a homogenous mixture of 2 or more substances and not all solutions are liquid

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According to Reaction B, how many moles of B2(SO3)3 can be formed from 9.31 moles of LiF?

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3 years ago

Give an example of a polar molecular compound that dissolves in water

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4 years ago

The element europium exists in nature as two isotopes: 151eu has a mass of 150.9196 amu, and 153eu has a mass of 152.9209 amu. t

Ratling [72]

Two isotopes of europium are 151eu and 153eu

Mass of 151eu = 150.9196 amu

Mass of 153eu = 152.9209 amu

Average atomic mass = 151.96 amu

Let x and y are the relative abundance of two isotopes of europium are 151eu and 153eu

So, x% times 150.9196 + y% times 152.9209 = 151.96

x150.9196 + y152.9209 = 151.96

And x + y = 100% = 1, from here x = 1 – y and y = 1 - x

Solve these equation by substitution,

By replacing x = 1-y, we get

(1-y)150.9196 + y152.9209 = 151.96

150.9196 – 150.9196y + y152.9209 = 151.96

2.0013y = 1.0404

Y =0.5199 = 51.99%

Using the value of y we get,

X = 1-y = 1-51.99 = 0.4801 = 48.01%

<span>So, relative abundance of two isotopes of europium are 151eu and 153eu are 48.01% and 51.99% respectively</span>

6 0

3 years ago

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Ferrous sulfate (FeSO4) was used in the

BARSIC [14]

Ferrous sulfate (FeSO4) is obtained by the reaction of aqueous ferric sulfate with gaseous sulfur dioxide and water according to the equation below:

Aqueous ferric sulfate = $Fe_2(SO_4)_3_{(aq)}$

Gaseous sulfur dioxide = $SO_2_{(g)}$

Water = $H_2O_{(l)}$

Aqueous sulfuric acid = $H_2SO_4_{ (aq)}$

Aqueous ferrous sulfate = $FeSO_4_{ (aq)}$

Thus, the balance equation becomes:

$Fe_2(SO_4)_3_{(aq)}$ + $SO_2_{(g)}$ + $2H_2O_{(l)}$ $--->$ $2 H_2SO_4_{ (aq)} + 2 FeSO_4_{ (aq)}$

More on ferrous sulfate can be found here: brainly.com/question/10834028

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3 years ago

A substance is present in the gaseous state at room temperature. Which of the following best explains the probable position of t

Gnoma [55]

Answer:

D.) It is between groups 13 to 18 because it is a non-metal.

Explanation:

Here we can see the periodic table and what each element is.

It is a non - metal because it is gaseous.

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4 years ago

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