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QveST [7]
2 years ago
7

Which of the following is most likely an indication of a chemical change?

Chemistry
2 answers:
givi [52]2 years ago
6 0

Answer:

B.) A loud sound when a starter's pistol is fired at a race.

faust18 [17]2 years ago
4 0
B. A loud sound when a starters pistol is fired at a race
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The cubic centimeter (cm3) is a measurement of which of the following quantities? Density
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2Al(s)+Fe2O3(s) → Al2O(s)+2Fe(s) with a delta H=-847 KJ.
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7 0
3 years ago
Read 2 more answers
If i have 17 moles of gas at a temperature of 67c, and a volume of 88.89 liters what is the pressure of the gas
Shtirlitz [24]
Use the state equation for ideal gases: pV = nRT

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V = 88.89 liter
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R = 0.0821 atm * liter / (K*mol)

=> p = nRT / V = 17 mol * 0.0821 (atm*liter / K*mol) * 340.15 K / 88.89 liter

p = 5.34 atm

Answer: p = 5.34 atm

4 0
3 years ago
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