Answer:
A. Show that the total of the masses of the starting substances equals the mass of the mixture.
Explanation:
Law of conservation of mass:
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
This law was given by French chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
For example:
In given photosynthesis reaction:
6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂
there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.
In a similar way if we have mixture of sugar and sand the total weight of mixture is equal to the weight of reactants.
sand + sugar + water → mixture
10g+5g+20 g = 35 g
Answer:
The general form of a partition function is a sum over the states of the system,
Explanation:
qTr + qRo+ qVi +qEl= Qt
Qt= total energy
Answer:
0.015 mol AgI
Explanation:
First of all, you have provided an unbalanced equation, so let's balance that:
2AgNO3(aq) + CaI2(aq) --> 2AgI(s) + Ca(NO3)2(aq)
Then let's calculate the moles of AgNO3 using the formula: n = c * V:
c(AgNO3) = 0.300 M (mol/L)
V(AgNO3 - solution) = 50.0 mL = 0.05 L
n(AgNO3) = c (AgNO3) * V(AgNO3) = 0.300 mol/L * 0.05 L = 0.015 mol
Finally, using the coefficients in the equation, we find the moles of AgI:
n(AgNO3) : n(AgI) = 1 : 1
n(AgI) = n(AgNO3) = 0.015 mol
The material of object. The size of object. The surface are of the object