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3 years ago

Which statement best describes the model that shows a compound?

Chemistry

2 answers:

VashaNatasha [74]3 years ago

5 0

B is the.answer for this problem

kirza4 [7]3 years ago

4 0

Answer:

Explanation:

The definition of a compound, is a chemical substance containing two or more elements chemically bonded together.

Model X clearly shows a compound because there are many substances which have two elements chemically bonded to each other.

Model Y does not show a compound because although there are three different atoms, they are not chemically bonded together. This model would most likely represent a solution.

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Anton [14]

I believe the answer is A the 1st one

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3 years ago

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patriot [66]

You would expect snow to fail at the peak or the top because the weather is coldest there.

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3 years ago

815 yd to km (need 3 sig fig)

SpyIntel [72]

<u>Answer:</u> The correct answer is 0.745 km

<u>Explanation:</u>

We are given:

A numerical value of 815 yards

To convert this into kilometers, we use the conversion factor:

1 km = 1093.6 yards

Converting the given value into kilometers, we get:

$\Rightarrow 815yd\times \frac{1km}{1093.6yd}=0.745km$

Hence, the correct answer is 0.745 km

5 0

3 years ago

At a certain temperature, the solubility of strontium arsenate, sr3(aso4)2, is 0.0560 g/l. what is the ksp of this salt at this

REY [17]

The solution for this problem is:
Get into moles first. .0560 grams over 540.8 grams per mole = 1.04 x l0^-4 moles
Sr3(As04)2 = 3 Sr++(aq) plus 2 As04^-3(aq)
Ksp = (Sr++)^3(As04^-3)^2
(Sr++) = 3 X 1.04 x l0^-4= 3.11 x l0^-4
(As04^-3) = 2 x 1.04 x l0^-4= 2.07 x l0^-4
Ksp = (1.04 x l0^-4)^3 (2.07 x l0^-4)^2 which equals 4.82 x 10^-20

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3 years ago

Which energy change occurs during boiling?

neonofarm [45]

Heat energy is absorbed by the substance.

4 0

3 years ago

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