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Anton [14]
3 years ago
7

An apple has a mass of 297 grams. How many kilograms is this? (Note: You can use the information in the table below to make a co

nversion factor.)
Chemistry
2 answers:
Fantom [35]3 years ago
7 0

Answer: 0.297 grams.

Explanation: the conversion factor between kilograms and grams is:

1 kg=1000 g

applying this factor to the given mass of an apple, we have:

297 grams *\frac{1 kg}{1000 grams}

as we can see, we just have to divide by 100 so:

297 grams= 0.297 kg.

yan [13]3 years ago
4 0
.297 kilograms
297g x 1 kg/100 g = .297
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A chemist has 3.55x1022 molecules of nitrogen monoxide. How
Alina [70]

Answer:

<h2>0.059 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{3.55 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.05897...

We have the final answer as

<h3>0.059 moles</h3>

Hope this helps you

6 0
3 years ago
13. A new mystery novel will cost Ally $26.60. If she earns $6.65 an hour, how many hours will
Charra [1.4K]
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3 0
3 years ago
Read 2 more answers
Which is true about all the different types of matter?
Marat540 [252]
Answer: 1. It is made up of the same basic particles

Matter is made up of atoms, molecules, and ions that cause it to have mass and volume. The different types of matter are made up of the same basic particles but differ on the molecular arrangement and energy the atoms contains that's why they appear differently and have different properties.
8 0
3 years ago
Ernest Rutherford's gold-foil experiment showed which of the following?
loris [4]
Ernest Rutherford's gold-foil experiment showed the density of atoms.
<span>The experiment proved that most of an atom is empty space with a very small positively charged nucleus in the middle. 
So, from the given statements he following is true: 
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4 0
3 years ago
What mass of copper is consumed in the reaction with hydrochloric acid if 10.0 g of gas is collected?
brilliants [131]

Answer:

317 g

Explanation:

Cu + 2HCl --> CuCl2 +H2

1      :     2           1 : 1

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63.5 g of Cu produces = 2 g of H2

So

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4 0
3 years ago
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