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Grace [21]
3 years ago
12

I need help...

Chemistry
1 answer:
Aneli [31]3 years ago
7 0

Answer:

1. Density of the rectangular prism is  <u>20 g/cm3</u>

2. A material's ability to dissolve : <u>Soubility</u>

3. <u>Intensive property</u> : A physical property that is independent of sample size.

Explanation:

Volume of Prism is calculated by :

volume = L\times W\times H

Length = 3 cm

Width = 2 cm

Height = 1 cm

volume = 3\times 2\times 1

V = 6 cm3

mass = 120 g

Density = \frac{mass}{Volume}

Density = \frac{120}{6}

Density = 20 g/cm3

2.

<u>Solubility :</u>

  • It is the chemical property of the substance.
  • It shows the ability of the solute to dissolve in the solvent at a given temperature.

3.

<u>Intensive Properties:</u>

  • These are bulk properties(Do not depend upon the amount of matter present)
  • They are independent of sample size.
  • Example : boiling point,melting point,temperature,refractive index

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1 year ago
A metallurgist has one alloy containing 21% aluminum and another containing 42% aluminum. how many pounds of each alloy must he
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Answer is: 7.8 lb of 21% aluminum and 33.2 ib of <span>42% aluminum.</span>

ω₁<span> = 21% ÷ 100% = 0.21.
ω</span>₂<span> = 42% ÷ 100% = 0.42.
ω</span>₃<span> = 38% ÷ 100% = 0.38.
</span>m₁ = ?.

m₂<span> = ?.
</span>m₃ = m₁ + m₂<span>.
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m₁ = 41 lb - m₂<span>.
ω</span>₁ · m₁ + ω₂ ·m₂ = ω₃ · m₃.

0.21 · (41 lb - m₂) + 0.42 · m₂ = 0.38 · 41 lb.

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8 0
3 years ago
Which of the following substances is less dense in its solid form than in its liquid form?
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Dude... h2o, thats why ICE FLOATS ON WATER!!!!

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4 years ago
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