Explanation:
I think 20
0 in the photo should be 1, 1, 1
Answer:
Explanation:
The pressure is constant, so we can use Charles' Law to calculate the volume.
Data:
V₁ = 693 mL; T₁ = 45 °C
V₂ = ?; T₂ = 150 °C
Calculations:
(a) Convert temperature to kelvins
T₁ = ( 45 + 273.15) = 318.15 K
T₂ = (150 + 273.15) = 423.15 K
(b) Calculate the volume
The significant figure is only 1 which is just the number 5. The zeros don't count.
Answer:
Determine the value of the oxidation numbers of atoms or ions on the reactant side and the product side.
Explanation:
A redox reaction involves some ions, and atoms losing electrons and other gaining them in the same reaction. When oxidation occurs, there is loss of electrons by an element thus its oxidation number increases; becomes more positive. When reduction occurs an element gains electrons and the oxidation number becomes more negative; reduces.
If an element (s) behaves in this manner in the whole reaction, then be sure to deduce that a redox reaction has occurred.
Avogadro's law states that in one mole of a substance, there are 
molecules.
This means that in 1.55 moles, there are 
