Yelena Makarova
Private message
Offer work
Ukraine
9 years back
a little busy
on the service 15 years
Rating
Successful projects
Average rating
Skills and abilities
Design & art
Portfolio
-
1 USD 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
-
1 USD Task of Matanalysis
and differentiation. Area of definition of function.
-
1 USD 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?