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3 years ago

Explain how the scientific definition of work is different from the everyday meaning

1 answer:

8 0

EveryDay Work(Job) - A job is like something that someone or something does to get payed for doing thatspecific job they have

Ex: I work at Family Dollars it's my job(That's my everyday working job)

Work(Scientific Term) - Means when force acting on body to break it down in simpler terms, Lets say that you have a marker in your hand and you drop it you've just done work as as said before "Force acting on a body".

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If you have 8.45 x 10^27 molecules of H2O, how many moles of water do you have?

il63 [147K]

Answer:

<h3>The answer is 14036.54 moles</h3>

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

N = 8.45 x 10^27 molecules of H2O

We have

$n = \frac{8.45 \times {10}^{27} }{6.02 \times {10}^{23} } \\ = 14036.544850...$

We have the final answer as

<h3>14036.54 moles</h3>

Hope this helps you

7 0

3 years ago

Select all of the elements that are classified as metals.

ASHA 777 [7]

Answer:

Gold, sodium, aluminum

Explanation:

The metals are located on the left side of the periodic table

4 0

3 years ago

Read 2 more answers

What are the 20 elements of periodic table

sergij07 [2.7K]

Answer:

H - Hydrogen

He - Helium

Li - Lithium

Be - Beryllium

B - Boron

C - Carbon

N - Nitrogen

O - Oxygen

F - Fluorine

Ne - Neon

Na - Sodium

Mg - Magnesium

Al - Aluminum

Si - Silicon

P - Phosphorus

S - Sulfur

Cl - Chlorine

Ar - Argon

K - Potassium

Ca - Calcium

3 0

3 years ago

You are researching how your community protects Earth's resources.

AURORKA [14]

Answer:

D,C

Explanation:

6 0

4 years ago

How many molecules are there in 322 grams of Cu(NO3)2

mr_godi [17]

<span>cu=1*63g=63g
n=2*14g=28g
o=6*16g=96g
total=187g/mol
122(1 mol/187)(6.02*10^23)= 3.92*10^23 </span><span>
</span>

3 0

3 years ago