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andrew-mc [135]
3 years ago
14

Angela was instructed on a test to make an analogy, or comparison, for polymers. She writes four examples of how polymers are li

ke pearl necklaces. She has many parts to this analogy that make sense, but one part of her analogy does not fit.
Which is the most likely error in her analogy?
Chemistry
2 answers:
erica [24]3 years ago
8 0

Answer:

B

Explanation:

I took the test

inessss [21]3 years ago
6 0
The correct option is this: THE THREAD THAT CONNECTS THE PEARLS IS LIKE AN IONIC BOND.
The type of bond that connect polymers is not ionic bond. Polymers are made up of non metals and carbon is the most common element in polymers. Molecules in polymers are usually connected together by covalent bonds.
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Which tool or tools would you use to measure and compare the mass of a cup of fresh water and a cup of salt water
Artemon [7]
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4 0
3 years ago
How many CO2 molecules in 0.0189 mol of CO2?
Blizzard [7]

Answer:

option C is correct = 1.14 × 10²² molecules of  CO₂

Explanation:

Given data:

Number of moles of CO₂ = 0.0189 mol

Number of molecules = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

For given question:

1 mole of CO₂ =  6.022 × 10²³ molecules of  CO₂

0.0189 mol of CO₂ ×  6.022 × 10²³ molecules of  CO₂ / 1mol

1.14 × 10²² molecules of  CO₂

Thus, option C is correct.

4 0
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</span>
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Explanation:

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