Answer: 1. 5
2H202 -> 2H2O + O2 ; 2 + 2 +1 = 5
The lower you go, the more acidic. The higher you go, the more alkaline. Your answer would most likely be 6.
Answer:
You take the atomic, or proton number of the element, and you subtract it from the element's mass number.
Answer:
Copper(II) sulphate – sodium hydroxide reaction
The reaction between copper(Il) sulphate and sodium hydroxide solutions is a good place to start. If you slowly add one to the other while stirring, you will get a precipitate of copper(II) hydroxide, Cu(OH)2.
Mass / volume = density
30.943g / 35ml = 0.88408571g/ml
