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nevsk [136]
3 years ago
9

What is an "alloy" in the chapter of metals in chemistry??

Chemistry
2 answers:
Fynjy0 [20]3 years ago
7 0
It is a mixture of which consists of 2 or more elements which "mix" and create a metal.
avanturin [10]3 years ago
3 0
A mixture of metals and non-metals 
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A balloon is filled with 2000 mL of air at a pressure of 2 atm. What is the volume of the balloon if the pressure is
artcher [175]

Answer:

800mL

Explanation:

Using Boyle's law which states that the volume of a given mass of gas is inversely proportional to the pressure, provided temperature remains constant

P1V1= P2V2

P1 = 2 atm, V1 = 2000mL ,

P2 = 5atm , V2 = ?

2 × 2000 = 5 × V2

Divide both sides by 5

V2 = 4000 ÷ 5

V2 = 800mL

I hope this was helpful, please mark as brainliest

6 0
3 years ago
You can practice converting between the mass of a solution and mass of solute when the mass percent concentration of a solution
vfiekz [6]

Answer:

450. g of 0.173 % KCN solution contains 779 mg of KCN.

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Mass of the solution = m

Mass of the KCN in solution = 779 mg

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(m/m)\%=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100

0.173\%=\frac{779 mg}{m}\times 100

m=\frac{779 mg}{0.173}\times 100= 450,289 mg

1 mg = 0.001 g

m = 450,289 mg × 0.001 g = 450.289 mg ≈ 450. g

450. g of 0.173 % KCN solution contains 779 mg of KCN.

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Boiling and melting points exploration<br>​
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