Answer:
207.89g
Explanation:
The formula of the compound is:
Fe₂S₃
Find the molar mass of the compound;
Atomic mass of Fe = 55.845g/mol
S = 32.065g/mol
Now;
Molar mass of Fe₂S₃ = 2 (55.845) + 3 (32.065)
= 207.89g
The correct answer would be 2
rate 1 of the reaction = k [A]²
rate 2 of the reaction = k [A/2]² = k[A]² /4
We can see that rate of the reaction will be 4 times less.
Hydroxide ions (OH-) greatly increases in number and or concentration, number within a given volume, when a base is dissolved in water. This explanation proposes the Arhennius definition of a base.
Mg will have a higher amu than Be but a lower amu than Ca.
