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Oksi-84 [34.3K]
2 years ago
15

4. What energy transformation takes place when you light a match?

Chemistry
1 answer:
Pie2 years ago
5 0

Mechanical Energy to Thermal Energy

hope it helps...!!!

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Find the mass, in grams, of 3.758 mol CH4. ( show work )
vladimir2022 [97]

Answer:

The mass of CH4 is 60, 29 grams.

Explanation:

We use the weight of the atoms C and H for calculate the molar mass:

Weight of CH4= weight C+ 4 x weight H= 12,01 g/mol +4 x 1,008g/mol=

Weight of CH4 =16, 042 g/mol

1molCH4-----16, 042grams

3,758 mol CH4--X= (3,758 mol CH4 x 16, 042 grams)/1 mol CH4=60,285836 grams

5 0
3 years ago
How would a bar magnet orient itself relative to this planet's magnetic field?
Maksim231197 [3]

The magnet's north pole would point to the Earth's south pole and the magnet's south pole would point to the Earth's north pole.

<u>Explanation</u>:

  • There is a magnetic pole in the earth and the magnetic poles of the earth run using the equator and it has both the closures at the arctic pole and the Antarctic pole. The attractive positive field or the north pole is situated in the arctic zone and the south pole is situated in the Antarctic zone.  
  • The magnetic positive field or the north pole is situated in the arctic zone. Any magnet which is allowed to rotate whenever suspended on the outside of the earth will align itself with the magnetic field of the earth. That is the way the bar magnet orients itself comparative with this current planet's magnetic field.
7 0
3 years ago
Which one of the following is an alkane?<br><br> A. C2H4<br> B. C5H10<br> C. C3H8<br> D. C4H6
kondaur [170]
Hello

Answer :

C. C3H8
3 0
3 years ago
If 3.50 L of propane at 24°C and 62.2 kPa is completely burned in excess oxygen, how many moles of carbon dioxide will be produc
Eva8 [605]
1) convert Celsius to Kelvin
24 + 273 = 297

2) convert kPa to atm
62.2 / 101.3 = 0.614

3) plug numbers into the ideal gas law formula

Answer: 0.088 mols

4 0
3 years ago
PLEASE HELP
Anni [7]
B water at 99c since it is the hottest
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3 years ago
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