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BigorU [14]
2 years ago
13

Please help me solve these problems, thanks!

Chemistry
1 answer:
Fantom [35]2 years ago
8 0
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Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. what is the volume in liters of 3.46 kg of ethylene glycol?
Dovator [93]

Density is a physical property which describes the mass of a substance per unit of volume of the substance. It is expressed as Density = m / V and it has units like g/cm^3. We use the density given to solve the problem.

3.46x10³ g / 1.11 g/cm³ = 3117.12 cm³  (1 L / 1000 cm³) =3.12 L

7 0
3 years ago
Which situation aUggeata that an experlment han rellable renultn?
Crazy boy [7]

Answer:

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7 0
3 years ago
Azurite, 2 CuCO3 * Cu(OH)2 is blue and malachite, CuCO3 * Cu(OH)2 is green. Which contains the higher percentage of copper? Each
blagie [28]

Answer:

Malachite green has highest percentage of copper.

Explanation:

Azurite: 2CuCO_3.Cu(OH)_2

Molar mass of Azurite = M = 344.67 g/mol

Atomic mass of copper = 63.55 g/mol

Percentage of copper in Azurite :

Cu\%=\frac{3\times 63.55 g/mol}{344.67 g/mol}\times 100=55.31\%

The percentage of copper in an azurite is 55.31%.

Malachite: CuCO_3.Cu(OH)_2

Molar mass of Malachite = M = 221.12 g/mol

Atomic mass of copper = 63.55 g/mol

Percentage of copper in Malachite:

Cu\%=\frac{2\times 63.55 g/mol}{221.12 g/mol}\times 100=57.48\%

The percentage of copper in an malachite is 57.48%.

4 0
3 years ago
How is the frequency of an EM wave related to its energy
natulia [17]

Answer:

Higher the frequency, the higher the energy

Explanation:

Please help me by marking me brainliest. I'm really close :)

6 0
3 years ago
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What word best describes volume
alekssr [168]

Answer:

volume is the amount of space something occupies

Explanation:

7 0
4 years ago
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