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andrew11 [14]
3 years ago
9

Help! Pls tell me the meanings of all of these words and please try to make them short as possible!!! tysm have a great day! &lt

;3

Chemistry
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

Biofuel: Fuel from living matter

Conservertion of energy: It's a law where energy, when bodies/particles touch in a close system stays constant.

Conduction: Where via touch heat/electricity travels to a diffrent thing.

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Period table review i need help due on tomorrow help I will post the???
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HELP! <br> A train travels 102 miles in 2 5/6 hours. What is its average speed in miles per hour?
aniked [119]

Answer:

36miles/hour

Explanation:

speed =distance÷time taken

102miles/2 5/6

102÷17/6

102×6/17

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Use the periodic table to determine the electron configuration for aluminum (Al) and arsenic (As) in noble-gas notation.
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Which mineral group dose copper belong ​
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3 years ago
29.0g silver combine completely with 4.30g of sulfur to form a compound. what is the percent composition of this compound?
Deffense [45]

Answer:

Percentage of silver and sulphur in the compound  is 87.08% and 12.91%  respectively

Explanation:

Given:

Amount of silver = 29.0 g

Amount of sulphur= 4.30 g

To find:

Percent composition of the compound=?

Solution:

\text { percent of compound }=\frac{\text { amount of element }}{\text { Total Molecule Mass }} \times 100

Total Molecule mass = amount of silver + amount of sulphur

Total Molecule mass = 29+4.3  

Total Molecule mass = 33.3g

Percentage of silver:

\text { Percentage of silver }=\frac{\text { amount of silver }}{\text { Total Molecule Mass }} \times 100

=>\frac{29.0}{33.3}\times100

=>0.8708 \times100

=> 87.08%

Percentage of silver:

\text { Percentage of silver }=\frac{\text {amount of suplhur}}{\text { Total Molecule Mass }} \times 100

=>\frac{4.30}{33.3}\times 100

=>0.1291\times 100

=> 12.91%

3 0
4 years ago
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