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Lady bird [3.3K]
3 years ago
13

Explain if the efficiency of a machine can ever be greater than 100%?

Chemistry
2 answers:
Zarrin [17]3 years ago
7 0
No because a 100% efficiency means the machine is working at its best.
Marizza181 [45]3 years ago
3 0
You should download Socratic with a good app!
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El agua oxigenada se descompone rápidamente en agua y oxígeno cuando se le agrega una peueña cantidad de dióxido de manganeso, q
katovenus [111]

Answer:

IDK

Explanation:

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3 years ago
A sound wave has a wavelength of 0.7 miles and a frequency of 500 Hertz what is the speed
yaroslaw [1]

speed equals wavelength times frequency so

.7 x 500 = 350

4 0
3 years ago
Energy can cause matter to _ or _<br>​
Firdavs [7]
Technically the answer would be a
7 0
3 years ago
The weight of different gasses that make up the atmosphere is called ?​
Scrat [10]
Earth’s Atmosphere

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4 0
3 years ago
The freezing point of 42.19 g of a pure solvent is measured to be 43.17 ºC. When 2.03 g of an unknown solute (assume the van 't
vovikov84 [41]

Answer:

The molality of the solution is 0.3716 mol/kg

The number of moles of solute is 0.0157 mol

The molecular weight of the solute is 129.30 g/mol

The molar mass of the solute is 129.32 g/mol

Explanation:

m (molality of the solution) = ∆T/Kf = (43.17 - 40.32)/7.67 = 0.3716 mol/kg

Number of moles of solute = molality × mass of solvent in kilogram = 0.3716 × 0.04219 = 0.0157 mol

Molecular weight of solute = mass/number of moles = 2.03/0.0157 = 129.3 g/mol

When Kf = 7.66 °C.kg/mol

Molar mass = 2.03 ÷ (2.85/7.66 × 0.04219) = 129.32 g/mol

4 0
3 years ago
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