The task of anorganic chemistry
To the solution containing 70 g of nitric acid, 28 g of calcium hydroxide was added. Determine the mass of salt formed as a result of the reaction
Task of Matanalysis
and differentiation. Area of definition of function.
Task of Nuclear Physics
The activity of wheat seeds empty in a nitric acid sodium solution containing a radioactive isotop is... What is the mass absorbed by grains of radioactive isotop?