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dusya [7]
2 years ago
12

At 0 °C, some amount of energy is required to change 1 kg of water from a solid into a liquid. If you had a 2 kg piece of ice, w

hat effect would this have on the amount of thermal energy required to change the water from a solid to a liquid? O It would require more energy to change solid water into liquid water because there are more molecules in this larger piece of ice. It would still require the same amount of energy to change solid water into liquid water because the entire piece of ice would still gain the same amount of energy in each case.​
Chemistry
1 answer:
kolbaska11 [484]2 years ago
5 0

Answer:

Explanation:

A bigger ice block is made up of more particles

( sorry if this doesnt help it really didnt make sence to me!)

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SVETLANKA909090 [29]

So yield = actual/predicted*100

You need to find the theoretical yield. CONVERT INTO MOLES. this is the 1st step you do in most calculation questions.

I got 15.92%

4 0
2 years ago
A cubic container is filled up with an unknown liquid whose density is 0.180 g/cm3. The side lengh of the container is 5.00cm. W
Romashka-Z-Leto [24]

Answer:

22.5

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M=D*V

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7 0
3 years ago
PLEASE HELP What's the mass in grams of 0.442 moles of calcium bromide, CaBr2? The atomic
djverab [1.8K]

Answer: Thus there are 88.4 g of calcium bromide.

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

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To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

0.442=\frac{x}{199.9}

x=88.4g

Thus there are 88.4 g of calcium bromide.

7 0
2 years ago
What is the relationship between kinetic energy and mass?
Solnce55 [7]

Answer:

The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related.

4 0
2 years ago
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Common units of electrical force are: A coulombs B Newtons C meters
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b is the correct answer

4 0
3 years ago
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