Which equation obeys the law of conservation of mass? a. 2c4h10 + 2cl2 + 12o2 7co2 + ccl4 + 10h2o b. c4h10+ cl2 + 2o2 7co2 + ccl4 + 8h2o c. 2c4h10+ 2cl2 + 12o2 4co2 + ccl4 + h2o d. 2c4h10+ 2cl2 + 6o2 co2 + ccl4 + 6h2o e. 4c4h10+ 4cl2 + 14o2 14co2 + ccl4 + 20h2o

Answer : The correct option is A.

Explanation :

Law of conservation of mass : In the chemical reaction, the mass of reactant must be equal to the mass of product.

A.

The mass of reactant side =

The mass of product side =

This means, the mass of product is equal to the mass of reactant. The mass remains conserved and obeys the law of conservation of mass.

The reaction B, C, D, E does not obey the law of conservation of mass.

Therefore, Only reaction A obey the law of conservation of mass.

answer; i do believe the correct answer is (river); /// good luck

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.