Potassium is the simplest form of matter and therefore can not be broken down by chemical change.
Lithium. Electronegativty increases across the periodic table and increases down the periodic table.
Answer:
Explanation:
Hello,
In this case, the increase in the temperature involves the addition of heat that is defined in terms of mass, heat capacity and temperature:
In this case, the heat capacity of iron is 0.450 J/(g*K), thus the heat results:
In such a way, since the temperature is increased heat is added, that is why it is positive.
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The moles of potassium that you would need to prepare 1200 g of 5% potassium sulfate solution is 1.538 moles
calculation
calculate the mass potassium using the below formula
%M/M = mass of the solute(potassium)/mass of the solvent (potassium sulfate solution)
let the mass of potassium be represented by Y
then convert % into fraction = 5/100
5/100 = Y/1200
cross multiplication
100y = 6000
divide both side by 100
Y= 60 g
moles of potassium =mass/molar mass
= 60/39=1.538
