Compounds, formulae and equations Flashcards
How does a product form in a chemical reaction?
When a chemical reaction occurs, no atoms are created or destroyed. The atoms in the reactants rearrange to form the products
What does aqueous mean?
Dissolved in water
What are ionic equations?
They can be written for an reaction involving ions in solution, where only the reacting ions and the products they form are included
What is a binary compound?
A compound that contains two elements only
How do you name a binary compound?
The name of first element and the name of second element with ending - ide
What is a polyatomic ion?
An ion that contains more than one element bonded together
How are ions created?
When electrons are transferred from one atom to another these ions attract each other due to their opposite charge to form ionic compounds
What kind of ions do group 1 metals form?
+1
What kind of ions do group 2 metals form?
+2
What kind of ions do group 3 metals form?
+3
What kind of ions do group 5 metals form?
-3
What kind of ions do group 6 metals form?
-2
What kind of ions do group 7 metals form?
-1
What is the formula of a nitrate ion?
NO3 -
What is the formula of a sulphate ion?
SO4 2-
