Atomic Structure
What group is Aluminium in?
Group 13
Give the formula of Sodium Chloride
NaCl
What is the charge on the oxide ion?
2-
What happens when you put red litmus into a basic solution?
It turns blue
Hydrochloric acid + sodium hydroxide → ________+ ______
Hydrochloric acid + sodium hydroxide → sodium chloride + water
What is the atomic number of Nitrogen
7
Give the formula of Sodium oxide
Na2O
What is the symbol of the carbonate ion
CO32-
What colour is universal indicator in a weakly acidic solution
yellow
Sulfuric acid + _____________ → potassium sulfate + water
Sulfuric acid + potassium oxide → potassium sulfate + water
What is the electron arrangement of the oxygen atom?
2, 6
Give the formula of Magnesium Chloride
MgCl2
What is the name of ion sulfur forms?
Sulfide ion
Give an example of a chemical change and an example of a physical change
Chemical: Egg frying, iron rusting etc
Physical: ice melting, glass breaking etc
_________ + calcium hydroxide → calcium nitrate + water
Nitric acid + calcium hydroxide → calcium nitrate + water
How many neutrons in potassium?
20
Give the formula of Potassium Hydroxide
KOH
What is a polyatomic ion?
An ion made of multiple elements
What 2 factors affect the rate of reactions?
Concentration and surface area
_____+ Mg(OH)₂ → MgCl₂ + ______
2 HCl + Mg(OH)₂ → MgCl₂ + H₂O
Give the electron arrangement of the Calcium ion
2, 8, 8
Give the formula of Aluminium Sulfate
Al2(SO4)3
What is the charge on the Phosphate ion
3-
Define neutralization
When an acid and a base react together to form water. The acid loses its acidic properties and the base loses its basic properties.
2 HCl + Ca(OH)₂ → _______ +______
2 HCl + Ca(OH)₂ → CaCl₂ + H₂O