When 1 mole of tin iv oxide is heated with 2 moles of hydrogen gas, 1 mole of tin metal and 2 moles of water vapor are generated. sno2 + 2h2 → sn + 2h2o how many moles of tin metal will be produced when 0.74 moles of tin iv oxide is heated?

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.