Use GDZ sites like Gdz.ru or Reshak.ru to check your logic after you've tried the problem yourself.
Explain why it happened using chemical theory (e.g., "The blue precipitate formed because copper ions reacted with hydroxide ions"). Sample Format for a Calculation Problem Find the mass of MgOcap M g cap O formed when burns in oxygen. Reaction: gdz po khimii
Use the coefficients from your balanced equation to find the moles of the unknown substance. Use GDZ sites like Gdz