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Yakvenalex [24]
4 years ago
8

A solute is a mixture in which particles can be seen and easily separated. Please select the best answer from the choices provid

ed T F
Chemistry
1 answer:
Ksju [112]4 years ago
7 0
F because solute is the one which is mixed to the other for a solution and after mixing I can never been seen neither separated !!
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Please help, and if you could also give me a step by step that would be awesome!!
const2013 [10]

Answer:

4.4 g

Explanation:

Step 1: Write the balanced equation

Cu + 4 HNO₃ ⇒ Cu(NO₃)₂ + 2 NO₂ + 2 H₂O

Step 2: Calculate the moles corresponding to 3.2 L of NO₂ at STP

At standard temperature and pressure, 1 mole of NO₂ occupies 22.4 L.

3.2 L × 1 mol/22.4 L = 0.14 mol

Step 3: Calculate the moles of Cu needed to produce 0.14 moles of NO₂

The molar ratio of Cu to NO₂ is 1:2. The moles of Cu needed are 1/2 × 0.14 mol = 0.070 mol.

Step 4: Calculate the mass corresponding to 0.070 moles of Cu

The molar mass of Cu is 63.55 g/mol.

0.070 mol × 63.55 g/mol = 4.4 g

5 0
3 years ago
Kayla is creating a model to show her understanding of the water cycle. She wants to show that water is constantly cycling betwe
Orlov [11]

Answer:C

Explanation:

It would be the most visually understandable.It would be easyer to understand what you are modeling.

3 0
3 years ago
In an AP, sum of four consecutive terms is 28 and their sum of their squares is 276. Find the four numbers.​
Aleks [24]
Four Consecutive terms are written as a-3, a-1, a+1,a+3. So

Sum of Terms : 4a=28
a=7

So the terms are 4,6,8,10

Verification : 4^2+6^2+8^2+10^2
= 216
4 0
3 years ago
The mathematical relationship between gas solubility and pressure is called Henry's Law, solubility = kHPgas where kH is the Hen
Diano4ka-milaya [45]

Answer : The unit of k_H in mol/L.mm Hg is, 1.8\times 10^{-6}mol/L.mmHg

Explanation :

As we know that the k_H is the Henry's Law constant for argon at 25^oC is, 1.4\times 10^{-3}mol/L.atm

Now we have to determine the unit of k_H in mol/L.mm Hg

Conversion used for pressure from atm to mmHg is:

1 atm = 760 mmHg

So,

k_H=1.4\times 10^{-3}mol/L.atm\times \frac{1atm}{760mmHg}

k_H=1.8\times 10^{-6}mol/L.mmHg

Thus, the unit of k_H in mol/L.mm Hg is, 1.8\times 10^{-6}mol/L.mmHg

5 0
3 years ago
Explain the meaning of the expression “like dissolves like.”
Sloan [31]

"Like dissolves like" is an expression used by chemists to remember how some solvents work. It refers to "polar" and "non-polar" solvents and solutes. Basic example: Water is polar. Oil is non polar.  Like dissolves like, that means polar dissolves polar, so water dissolves salt.

8 0
3 years ago
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