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3 years ago

How do the general methods for separating mixtures and compounds differ

1 answer:

max2010maxim [7]3 years ago

7 0

In a mixture, elements are not chemically reacted. The elements forming a mixture can be separated by physical methods. These methods include titration, boiling, filtration and so on.

On the other hand, compounds are formed by the chemical combination of two or more elements. This means that the elements forming the compound cannot be separated by physical means . A chemical reaction must be used to separate the elements forming a compound.

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What effect does the pH of water have on radish seed germination?

natka813 [3]

It has a high percentage of germination in pH’s 13-14 this shows that radish seeds can germinate very well in almost all pH levels

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3 years ago

by trial and error, find the largest number that can be added to 6.022× 1023 without changing its displayed value (as shown on t

harkovskaia [24]

As mentioned, this is a trial-and-error process. I typed in the Avogadro's number 6.022×10²³ then added the largest number I could think of. Since infinity can be thought of as 99999...(and so on), I thought that the number should all be composed of 9. As I add 9 after one another, I ended with about 10 quadrillion before the display changed to 6.022000001×10²³. Therefore, the largest number is: 9,999,999,999,999,999.

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4 years ago

Why does sugar dissolve

enyata [817]

Answer:

Sugar dissolves because energy is given off when the slightly polar sucrose molecules form intermolecular bonds with the polar water molecules.

Explanation:

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3 years ago

You start with an equimolar mixture of the gases SO₂ and O₂ in a container. The SO₂ and O₂ react to completion to form SO₃. If t

LuckyWell [14K]

The density of the product gas mixture is 5.39 g/L

Explanation:

Given:

Temperature after the reaction = $25^0$ C

Pressure in the container = 1.65 atm

The ideal gas equation PV = nRT

To find: Density of the product gas mixture

Step 1:

Molarity (M) = P/(RT)

$\[M=\frac{P}{R T}\]$M=\frac{1.65 \mathrm{atm}}{\left(0.08206 \frac{L \cdot a t m}{m o l . K}\right)(298.15 K)}$$

M = 0.0674 mol/L

Step 2:

The product of the given reaction is $SO_3$ . Its molar mass is

1S x 32.066 g/mol = 32.066 g/mol

3O x 16 g/mol = 48 g/mol

Adding both we get 80.066 g/mol

Therefore the density of the product gas mixture is $0.0674 \frac{{mol}}{L} \times \frac{80.066 g}{1 \mathrm{mol}}$

= 5.39 g/L

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3 years ago

Explain why you are more likely to overdose on vitamin a than on vitamin c

Allisa [31]

The difference is in how the vitamins are dissolved into the body. Vitamin C is water soluble, so your kidneys are able to filter them out and expel them from the body. Whereas vitamin A is fat soluble and the body cannot get rid of those vitamins and just store them inside the body.

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4 years ago