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DIA [1.3K]
2 years ago
14

Balance the following equation by providing the correct coefficients C2H6 + O2 -> CO2 + H2O

Chemistry
1 answer:
pogonyaev2 years ago
7 0
2 C2H6 + 7 O2 ➡️ 4 CO2 + 6 H2O
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If 2.9g of water is heated from 23.9C to 98.9C, how much heat (in calories) was added to the water?
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Answer:

Explanation:

we know that

ΔH=m C ΔT

where ΔH is the change in enthalpy (j)

m is the mass of the given substance which is water in this case

ΔT IS the change in temperature and c is the specific heat constant  

we know that given mass=2.9 g

ΔT=T2-T1 =98.9 °C-23.9°C=75°C

specific heat constant for water is 4.18 j/g°C

therefore ΔH=2.9 g*4.18 j/g°C*75°C

ΔH=909.15 j

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The answer of this answer is given in the attached file

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7 0
3 years ago
If you have a density of 3 g/mL and a mass of 15 g, what is the volume?
marta [7]

Answer:

15 ml

Explanation:

Volume = mass / density.

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2 years ago
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In order to reduce dependence on imported oil, the government of Jalica has imposed minimum fuel-efficiency requirements on all
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