Make sure you know all the type of equations and how to balanced them out, after that learn all your formula's and how to apply them, by simply buying a book and list all the formula's and most most importantly, when ever you can't do a problem write it out, because in order for to maximise your Atar, you have to know every single dotpoint + your HSC content well enough so when you see a question you can say, yeah I did this one day. this is the only study method that will get you far, if you only rely on people to do your questions, they want do you HSC, will they?
plus, you need to start getting ready, if you really serious about HSC, here a site: CHEMICAL REACTIONS IN YEAR 11 get start ortherwise ( you will fail your HSC, if you can't do simply calculations).
METALS IN WATER
Reactive Metal + Liquid Water → Metal Hydroxide + Hydrogen Gas
E.g. Na(s) + H2O(l) → NaOH(aq) + H2(g)
Metal + Steam → Metal Oxide + Hydrogen Gas
E.g. Zn(s) + H2O(g) → ZnO(s) + H2(g)
COMBUSTION OF A METAL
Metal + Oxygen Gas → Metal Oxide
E.g. 2Mg(s) + O2(g) → MgO(s)
COMBUSTION OF A CARBON COMPOUND
Hydrocarbon + Oxygen → Carbon Dioxide Gas + Liquid Water
E.g. 2C8H18(l) + 25O2(g) → 16CO2(g) + 18H2O(l)
METALS WITH ACIDS
Metal + Acid → Salt + Hydrogen gas
E.G. Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
CARBONATES WITH ACIDS
Carbonate + Acid → Salt + Carbon Dioxide Gas + Liquid Water
E.g. Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(l)
OXIDATION
Metal → Metal Ion + Electron/s
E.g. Cu(s) → Cu2+(aq) + 2e-
REDUCTION
Metal Ion + Electron/s → Metal
E.g. Ag+(aq) + e- → Ag(s)
REDOX (REDUCTION-OXIDATION REACTIONS)
This reaction involves the transfer of electron/s from one reactant to another. This thus results in both a reduction and oxidation reaction occurring. To obtain the redox reaction, you can either write the net ionic equation for a displacement reaction (option 1) or add reduction and oxidation reactions together (option 2).
E.g. OPTION 1:
Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s)
Cu(s) + 2Ag+(aq) + 2NO3- → Cu2+(aq) + 2NO3- + 2Ag(s)
Cu(s) + 2Ag+(aq) + 2NO3- → Cu2+(aq) + 2NO3- + 2Ag(s)
Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
E.g. OPTION 2
NOTE: BOTH THE CONSERVATION OF MASS AND CHARGE MUST BE SHOWN IN YOUR EQUATION!
Cu(s) → Cu2+(aq) + 2e-
+
2Ag+(aq) + 2e- → 2Ag(s)
__________________
Cu(s) + 2Ag+(aq) + 2e- → Cu2+(aq) + 2e- + 2Ag(s)
Cu(s) + 2Ag+(aq) + 2e- → Cu2+(aq) + 2e- + 2Ag(s)
Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
PHOTOSYNTHESIS
Carbon Dioxide Gas + Liquid Water → Solid Glucose + Oxygen Gas
I.e. 6CO2(g) + 6H2O(l) → C6H12O6(s) + 6O2(g)
RESPIRATION
Aqueous Glucose + Oxygen Gas → Carbon Dioxide Gas + Liquid Water
I.e. C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l)
LIME WATER TEST (LIME WATER AND CARBON DIOXIDE)
Calcium hydroxide + Gaseous carbon dioxide → Solid calcium carbonate + liquid water
I.e. Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l)
here is all you need for chemistry year 11, let m e know if you also need the year 12, you can search on on matrix education on Google. ( credit oes to matrix education for there wonderful site! helping thousands of students)
here is the formula you will ever need your year 11 ( I repeat this follows for yar 12, so learn them well know to make your self easily in year 12).
n=m/Mm'
n= v/Mv
here is another site showing you balancing chemical equations! www.youtube.com/watch?v=lFIbPlgDREI
another one from talent 100 tutor ( he is good, goes through the steps of chemical calaltions, lol) www.youtube.com/watch?v=_rPUuUBt_zk:
good luck, study hard you will succeed, when ever you don't understand something, seek help, trust me you don't want to go in the exam and say if only I did this then I would have gotten full marks,
three steps for every year 11 students, no matter what the course/subject is
understand, apply, practice quetsions ( especially for chem/bio/physics, maths)
plus, you need to start getting ready, if you really serious about HSC, here a site: CHEMICAL REACTIONS IN YEAR 11 get start ortherwise ( you will fail your HSC, if you can't do simply calculations).
METALS IN WATER
Reactive Metal + Liquid Water → Metal Hydroxide + Hydrogen Gas
E.g. Na(s) + H2O(l) → NaOH(aq) + H2(g)
Metal + Steam → Metal Oxide + Hydrogen Gas
E.g. Zn(s) + H2O(g) → ZnO(s) + H2(g)
COMBUSTION OF A METAL
Metal + Oxygen Gas → Metal Oxide
E.g. 2Mg(s) + O2(g) → MgO(s)
COMBUSTION OF A CARBON COMPOUND
Hydrocarbon + Oxygen → Carbon Dioxide Gas + Liquid Water
E.g. 2C8H18(l) + 25O2(g) → 16CO2(g) + 18H2O(l)
METALS WITH ACIDS
Metal + Acid → Salt + Hydrogen gas
E.G. Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
CARBONATES WITH ACIDS
Carbonate + Acid → Salt + Carbon Dioxide Gas + Liquid Water
E.g. Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(l)
OXIDATION
Metal → Metal Ion + Electron/s
E.g. Cu(s) → Cu2+(aq) + 2e-
REDUCTION
Metal Ion + Electron/s → Metal
E.g. Ag+(aq) + e- → Ag(s)
REDOX (REDUCTION-OXIDATION REACTIONS)
This reaction involves the transfer of electron/s from one reactant to another. This thus results in both a reduction and oxidation reaction occurring. To obtain the redox reaction, you can either write the net ionic equation for a displacement reaction (option 1) or add reduction and oxidation reactions together (option 2).
E.g. OPTION 1:
Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s)
Cu(s) + 2Ag+(aq) + 2NO3- → Cu2+(aq) + 2NO3- + 2Ag(s)
Cu(s) + 2Ag+(aq) + 2NO3- → Cu2+(aq) + 2NO3- + 2Ag(s)
Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
E.g. OPTION 2
NOTE: BOTH THE CONSERVATION OF MASS AND CHARGE MUST BE SHOWN IN YOUR EQUATION!
Cu(s) → Cu2+(aq) + 2e-
+
2Ag+(aq) + 2e- → 2Ag(s)
__________________
Cu(s) + 2Ag+(aq) + 2e- → Cu2+(aq) + 2e- + 2Ag(s)
Cu(s) + 2Ag+(aq) + 2e- → Cu2+(aq) + 2e- + 2Ag(s)
Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
PHOTOSYNTHESIS
Carbon Dioxide Gas + Liquid Water → Solid Glucose + Oxygen Gas
I.e. 6CO2(g) + 6H2O(l) → C6H12O6(s) + 6O2(g)
RESPIRATION
Aqueous Glucose + Oxygen Gas → Carbon Dioxide Gas + Liquid Water
I.e. C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l)
LIME WATER TEST (LIME WATER AND CARBON DIOXIDE)
Calcium hydroxide + Gaseous carbon dioxide → Solid calcium carbonate + liquid water
I.e. Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l)
here is all you need for chemistry year 11, let m e know if you also need the year 12, you can search on on matrix education on Google. ( credit oes to matrix education for there wonderful site! helping thousands of students)
here is the formula you will ever need your year 11 ( I repeat this follows for yar 12, so learn them well know to make your self easily in year 12).
n=m/Mm'
n= v/Mv
here is another site showing you balancing chemical equations! www.youtube.com/watch?v=lFIbPlgDREI
another one from talent 100 tutor ( he is good, goes through the steps of chemical calaltions, lol) www.youtube.com/watch?v=_rPUuUBt_zk:
good luck, study hard you will succeed, when ever you don't understand something, seek help, trust me you don't want to go in the exam and say if only I did this then I would have gotten full marks,
three steps for every year 11 students, no matter what the course/subject is
understand, apply, practice quetsions ( especially for chem/bio/physics, maths)
