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Harlamova29_29 [7]
3 years ago
15

How many moles are in 5.34 x 10*21 particles of Nitrogen?

Chemistry
1 answer:
Mariulka [41]3 years ago
4 0
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The purpose of a machine is to decrease the work needed. TRUE/FALSE
aniked [119]

Answer:

False.

Explanation:

A machine does not decrease the work needed. It simply makes the work easier or changes how the work is done.

8 0
3 years ago
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Si se adiciona etilenglicol (compuesto no volátil) a agua destilada:
poizon [28]

Answer:

Hey hi

Explanation:

Can you pls tell me which language is this pls I really want to help you... Sorry

6 0
3 years ago
What is the maximum amount of CO2
Wittaler [7]

Answer:

10.6 g CO₂

Explanation:

You have not been given a limiting reagent. Therefore, to find the maximum amount of CO₂, you need to convert the masses of both reactants to CO₂. The smaller amount of CO₂ produced will be the accurate amount. This is because that amount is all the corresponding reactant can produce before it runs out.

To find the mass of CO₂, you need to (1) convert grams C₂H₂/O₂ to moles (via molar mass), then (2) convert moles C₂H₂/O₂ to moles CO₂ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles CO₂ to grams (via molar mass). *I had to guess the chemical reaction because the reaction coefficients are necessary in calculating the mass of CO₂.*

C₂H₂ + O₂ ----> 2 CO₂ + H₂

9.31 g C₂H₂            1 mole               2 moles CO₂          44.0095 g
------------------  x  -------------------  x  ----------------------  x  -------------------  =
                            26.0373 g           1 mole C₂H₂              1 mole

=  31.5 g CO₂

3.8 g O₂             1 mole               2 moles CO₂          44.0095 g
-------------  x  --------------------  x  ----------------------  x  --------------------  =
                       31.9988 g              1 mole O₂                 1 mole

=  10.6 g CO₂

10.6 g CO₂ is the maximum amount of CO₂ that can be produced. In other words, the entire 3.8 g O₂ will be used up in the reaction before all of the 9.31 g C₂H₂ will be used.

8 0
2 years ago
Which one of these is a gas<br> NaNo3<br> KL<br> KCL<br> NH3
Deffense [45]

Answer:

nano3 is a solid so its not that one it has to be NH3

Explanation:

welcome=.=!≧◇≦╰_╯←_←⊙▽⊙(ˇˍˇ)∩__∩◑__◐^_^^﹏^^m^^/^B-)(^o^)(ToT)

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3 0
3 years ago
How would scientists most likely describe the system of the Earth in regard to energy?
Nuetrik [128]

Answer:

4 is the best answer but incomplete.

Explanation:

Heat from the Earth is also radiated back into space. The in and out of energy is what makes it an open system.

8 0
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