3 years ago

Which of the following is the displacement from point P to point W?

1 answer:

4 0

<span>C represents the displacement ONLY if it is the VECTOR arrow from P to W.
Usually if the arrow on the diagram has JUST a letter listing, that letter stands for the SIZE or LENGTH of the VECTOR arrow. In order to have the letter represent the VECTOR, itself, it must have a symbol of a "half arrow" placed above it.</span>

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The process invented in 1864 to reduce the amount of bacteria in liquids and foods by heating them to high temperatures is calle

dlinn [17]

The key is a process called <span>pasteurization</span>

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3 years ago

Which statement accurately describes what happens when water turns to stream in terms of energy?

-Dominant- [34]

When water turns to steam,

D) the water absorbs energy which causes the water molecules to have more kinetic and potential energy changing their configuration from a liquid to a gas.

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3 years ago

Read 2 more answers

Why are a molecule's atoms as far away from each other as they can get?

Olenka [21]

Answer: A

Explanation:

Because I just answered it and it’s right. ( Forces between electron pairs push the atoms apart.

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3 years ago

Why is it important to start at the zero mark of a ruler/meterstick + triple beam balance when making measurements?

sergeinik [125]

Because if you start at one for example you starting at a extra cm/m/mm. So when you get your measurement result it will be wrong by just one cm/m/mm. Hope this wasn't too confusing.

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3 years ago

3. Given the following equation:

miskamm [114]

Answer:

4.767 grams of KCl are produced from 2.50 g of K and excess Cl2

Explanation:

The balanced equation is

2 K+ Cl2 --->2 KCI

Here the limiting agent is K. Hence, the amount of KCl will be calculated as per the mass of 2.50 gram of K

Mass of one atom/mole of potassium is 39.098 grams

Number of moles is 2.5 grams = $\frac{2.5}{39.098} = 0.064$

So, 2 moles of K produces 2 moles of KCL

0.064 moles of K will produces 0.064 moles of KCl

Mass of one molecule of KCl is 74.5513 g/mol

Mass of 0.064 moles of KCl is 4.767 grams

4 0

2 years ago