Valence and Bonding
What type of bonding involves the transfer of electrons?
Ionic
Is this equation balanced?
Mg + O2 → MgO
No
This reaction combines substances into one product.
Synthesis/Composition
This is produced when acids react with metals.
Hydrogen Gas
This law states matter cannot be created or destroyed.
Conservation of Matter
This type of bonding occurs in water
Covalent
What cannot be changed when balancing equations?
Subscripts
This reaction breaks one compound into simpler substances.
Decomposition
This is produced when acids react with carbonates.
Carbon dioxide
This is an insoluble solid formed during a reaction.
Precipitate
How many valence electrons does oxygen have?
6
What are the numbers called we use to balance equations?
Coefficients
This reaction involves ions swapping partners.
Double displacement
Neutralisation produces these two products.
Salt & Water
This type of reaction releases heat energy.
Exothermic
Why do atoms bond?
Balance this equation:
Na + Cl2 → NaCl
2Na + Cl2 → 2NaCl
This reaction type occurs when a fuel reacts with oxygen.
Combustion
Hydrochloric acid forms these salts.
Chloride Salts
This factor increases reaction rate by exposing more particles.
Surface Area
How many nitrate ions are in Mg(NO₃)₂?
2
How many oxygen atoms are in:
3Ca(NO3)2
18
Identify the reaction type:
Zn+CuSO4→ZnSO4+Cu
Single displacement
What products will this reaction yield?
HCl + NaOH→
NaCl + H2O
A reaction in an open beaker appears to lose mass. Where did the mass most likely go and in what form?
It left the beaker in a gaseous form.