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3 years ago

What is The substance that could not be dissolved and has settled out of a solution

Chemistry

1 answer:

lys-0071 [83]3 years ago

5 0

homogeneous mixture not pure, but is spread out the same throughout

concentration, a measure of the amount of solute dissolved in a solvent

mixture,two or more substances that do not chemically combine, salt and pepper

solute,substance that is dissolved in the solution

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Calcolate resulant force 15N <-[]->20N

Reil [10]

Explanation:

5N right because -15N for left plus +20N for right = +5N

6 0

3 years ago

If you have 3.0 moles of argon gas at STP, how much volume will the argon take up?

Anestetic [448]

If you have 3.0 moles of argon gas at STP u would take up 2.5 volume

3 0

3 years ago

Express as ordinary numbers. 3 x 100 =

Stolb23 [73]

The answer is 300
3 * 100
3 * 10 * 10
30 * 10
300

Hope this helps. If it did, consider making it Brainliest!

7 0

3 years ago

Read 2 more answers

Phosphorus crystallizes in several different forms, one of which is a simple cube with an edge length of 238 pm. What is the den

algol13

<u>Answer:</u> The density of phosphorus is $3.81g/cm^3$

<u>Explanation:</u>

To calculate the density of phosphorus, we use the equation:

$\rho=\frac{Z\times M}{N_{A}\times a^{3}}$

where,

$\rho$ = density

Z = number of atom in unit cell = 1 (CCP)

M = atomic mass of phosphorus = 31 g/mol

$N_{A}$ = Avogadro's number = $6.022\times 10^{23}$

a = edge length of unit cell = $238pm=238\times 10^{-10}cm$ (Conversion factor: $1cm=10^{10}pm$ )

Putting values in above equation, we get:

$\rho=\frac{1\times 31}{6.022\times 10^{23}\times (238\times 10^{-10})^3}\\\\\rho=3.81g/cm^3$

Hence, the density of phosphorus is $3.81g/cm^3$

6 0

3 years ago

How many moles of oxygen (O2) are present in 33. 6 L of the gas at 1 atm and 0°C? 1. 5 2 22. 4 32.

oee [108]

The number of moles of oxygen in the gas is 1.5 L.

The correct option is (A).

<h3>What are moles? </h3>

The mole is the International System of Units' foundation unit of material quantity.

Given,

The volume of gas is 33.6 L

Pressure is 1 atm.

Temperature is 0°C

Molar gas volume is 22.4 L

There is no temperature and pressure is 1 atm.

By formula of moles, volume is divided by molar mass

$\bold{\dfrac{33.6}{22.4 } =1.5\; mole}$

Thus, option A is correct. 1.5 L.

Learn more about gas, here:

brainly.com/question/13123721

3 0

2 years ago