3 years ago

3.1

Chemistry

1 answer:

stich3 [128]3 years ago

4 0

Answer:

C3H8 +5O2 arrow 3CO2 +4H2O

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When the volume of a gas is changed from 524 cm^3 to ____ cm^3, the temperature will change from 491 K to 297 K .

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V1/T1=V2/T2
524 cm^3/491 K =V2/297K

V2=(524 cm^3*297K)/491 K= 317K

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PLEASE HELP!!!!!!!!!

KonstantinChe [14]

Answer:

Option "C" is the correct answer to the following question.

Explanation:

Given:

Pressure in an automobile tire (P) = 1.88 atm

Temperature (K) = 25°C = 273 + 25 = 298 Kelvin

New temperature (K1) = 37°C = 273 + 37 = 310 Kelvin

Find:

New pressure in an automobile tire (P1) = ?

Computation:

$\frac{P}{K}= \frac{P1}{K1} \\\\\frac{1.88}{298}= \frac{P1}{310}\\\\1.9557$

New pressure in an automobile tire (P1) = 1.9557

New pressure in an automobile tire (P1) = 1.96 (Approx)

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There are 6 protons, 7 neutrons, and 6 electrons since the atomic mass is rounded to 13.

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Metals conduct electricity because they have free Electrons in them which helps the current to move eaisily

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Match the name of the greenhouse gas with one of the human activities that produces it.

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Answer:

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