Explanation:
A balanced chemical equation is the one that has same number of atoms present on both reactant and product side.
The balanced chemical reaction equation will be as follows.
According to law of conservation of mass, mass can neither be created nor it can be destroyed. It can only be transformed from one form to another.
Hence, total mass of reactant species in the above equation is 112.6 g. Hence, total mass of products is also 112.6 g.
Also, in this reaction Mg is present in solid state, is present in gaseous state, and MgO is present in solid state.
Answer:
2.4mol
Explanation:
In order to calculate numbers of moles we have to divide the given mass by the molar mass of the substance (ibuprofen) n= m/M
To calculate the molar mass we have
C13= 12*13= 156
H18= 1*18=18
O2= 16*2 =32
Molar mass M = 153+18+32= 206g
Given the mass m= 250g per tablet
Hence number of moles in one tablet is n= 250/206= 1.2 mol
Therefore the total number of ibuprofen you took is 1.2*2 (for the two tablets) = 2.4 moles
I think the last one but I’m not sure
Answer:
Distillation
Explanation:
The method of distillation can be used to separate the two liquids, if their boiling point is known. The liquid with lower boiling point will be evaporated and its vapours will be captured, while the liquid with higher boiling point will remail in the container in the liquid state.