Answer:
52.36 grams of water was produced when 32 grams of propane was burned in excess of oxygen gas.
Explanation:
Moles of propane =
According to reaction, 1 mole of propane gives 4 moles of water.
Then 0.7273 moles of propane will give:
of water
Mass of 2.909 moles of water:
= 2.909 mol × 18 g/mol = 52.36 g
52.36 grams of water was produced when 32 grams of propane was burned in excess of oxygen gas.
Answer: Option (B) is the correct answer.
Explanation:
When the book was at the shelf, it had only potential energy as potential energy is the energy possessed due to the position of an object.
Therefore, when the book falls from the book shelf it gains kinetic energy as kinetic energy is the energy possessed due to the motion of an object.
Thus, when the books is falling from the top shelf then the motion of book increases therefore, we can conclude that the potential energy decreases as kinetic energy increases.
Answer:
which elements??? more info please
Zinc is amphoteric which means it reacts with both acids and alkalis.
The balanced equation is: Zn + 2NaOH + 2H2O --> Na2Zn(OH)4 + H2(g).
Sodium zincate and hydrogen gas are the products.