WAEC Chemistry Obj And Essay/Theory Solution Questions and Answer – MAY/JUNE 2018 Expo Runz.
Ensure You Always Subscribe For Your Next Subject At Least A Day Before The exam to avoid late delivery of exam pins AND Disapointments
H H H H H
| | | | |
| | | | | |
H H H H H H
The sixth member of Allene C7H14 =
7(molecular mass of carbon) + 14(molecular mass of H)
= 7(12) + 14(1)
= 84 + 14 = 98gmol-¹
-Cracking is the breaking down of higher molecules into smaller molecules while reforming is the change in the functional group or activity of the compound.
-In cracking more than one product or component is formed. But in reforming one product can still be gotten.
Enthalpy of Neutralization change is the heat change which offers when one mole of H+ from an acid reacts with one mole of OH- from an alkali to form one mole of water.
Weigh about 100cm³ of dil HCL(aq) and that of KOH(aq) of equal volume and put each into a glass calorimeter. The temperature of the two Solutions are taken. The mean volume of the temperature of the acid and base taken. Then quickly transfer the alkali to the acid, turn and take the final temperature of the solution. Record the mass of the mixture. Find the temperature difference.
Total heat covered = mass × specific heat capacity × temperature change.
I - copper
II - silver
Because silver is below copper in the electrochemical series.
Oxidation - anode
Reduction - Cathode
Collision theory states that the rate of a reaction depends on the rate of collision of the reactant molecules. Hence effective collision determines the rate of the reaction because it is the collision that leads to the formation of a product.
When the rate of collision increases, the rate at which molecules collide with each other will also increase thereby making the kinetic energy of the molecules to also increase. The temperature will also increase because temperature is a measure of average kinetic energy.
CLICK HERE TO VIEW THE DIAGRAM
C2H5OH + 3O2 ---->2CO2 + 3H2O
1mole of ethanol = 3moles of O2
2.5moles of ethanol will require 3 × 2.5/1 = 7.5moles of O2.
but 1 mole of gas = 22.4dm3
7.5moles = 7.5 × 22.4 = 168dm3 of O2.
Esterification is the formation of an Ester by the reaction between Alkanol and an acid.
Two uses of alkanols
i)They are used as solvents for cellulose
ii)They are uses in making perfumes and cosmetics.
iii) They are used for quick drying of paints and nail varnishes.
This is because the galvanized plate is corrosion-resistant. It has a protective coating which prevents further oxidation of the metal.
Fermentation is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.
n=0.01mol of H2SO4
x--->0.01mol of H2SO4
x=56*0.01/1 = 0.56g
mass unreacted = (5-0.56)g=4.44g
copper (ii) tetraoxsulphate(iv)
A catalyst increases the rate of a chemical by swinging it's activation every.
i) CH3CooH + NH3 ---->CH3CooH2 + H2O
i)It doesn't corrode easily.
ii)it doesn't react with contain inside.
iiii)It can stand for a long period of time.
i)Sweet production industries
i)it increases the volume water in ocean and seas.
ii)It causes increase in rainfall and also corrode painted surfaces
CLICK HERE TO VIEW THE DIAGRAM
Na2SO3(aq) + 2HCl(aq)----->2Nacl(aq)+H2O(s)+SO2(q)
dry the gas evolved by passing it through H2SO4 and collect it by downward delivery
because it is denser than air
Dalton's law of partial pressure states that in a mixture of gases, which do not react chemically together, a gas will exert a partial pressure, which is the pressure, it will exert if it is kept alone in the vessel.
T1=12degree = 285k
Using the general gas law
V1P1/T1 = V2P2/T2
litmus turn red because of the presence of the acid HCL
chlorine bromine iodine/increasing boiling point
because water has two(2)ion pairs of electrons as compared to ammonia which has one
042tvseries.Com send all exam expo answer earlier than others
WAEC ssce 2018 Chemistry expo answers, Ssce 2018 Chemistry objective and essay Expo answers now available, may/june Chemistry theory Answers for 2018, Chemistry obj and theory Questions WAEC Ssce Expo Answers Here, Free wassce Chemistry objective, essay & theory correct Expo 2018 answers Runz WAEC Chemistry, WAEC Ssce 2018 Free Chemistry essay, obj and theory Questions and Answers Expo for WAEC Chemistry Paper 1 and Paper 2 objective and essay Questions and Answers Expo Now Posted, Free Chemistry objective ans for internal ssce, see WAEC ssce expo Chemistry obj and theory, essay questions for free, loadedexpo correct wassce Chemistry ans, sure WAEC ssce Chemistry objective answers runz runs expo free real and correct WAEC ssce 2018 may/june Chemistry free expo runz runs ans answers online for free see free answers online, 2018 Verified WAEC Free Ssce Chemistry Obj and theory Answers have been posted REAL WAEC SSCE Chemistry QUESTIONS & ANSWERS Direct To Phone Number AS Text message, RE: 2018 WASSCE Chemistry (Expo) WAEC 2018 certified runs Chemistry questions and answers WAEC SSCE November/December 2018 Chemistry THEORY / ESSAY / OBJ QUESTION AND EXPO I need WAEC ssce free expo site, how can I get WAEC Chemistry answer for free, WAEC 2018 Chemistry essay, Objective And Theory Question and Answer Now Posted, Real 2018/2019 may/june wassce WAEC Chemistry objective, essay and theory 100% correct expo questions and answers runz chokes runs, verified 2018 WAEC Chemistry theory, essay and obj WAEC Chemistry expo website, WAEC ssce Chemistry live cheats, sure November/December WAEC SSCE 2018 Chemistry original objective, theory and essay questions and answer now available here, 100% WAEC ssce Chemistry expo, 2018 wassce Chemistr obj, essay and theory runz now posted, correct WAEC ssce Chemistry objective, essay (theory) answer now ready, free 2018 wassce Chemistry obj, theory and essay best expo site WAEC ssce Chemistry questions and answers, password for certified WAEC ssce Chemistry essay theory obj expo, how to get/ where to get wassce Chemistry theory, essay and objective expo answer direct to my phone as text message, trusted WAEC ssce Chemistry questions and answer, i need WAEC Ssce may/june Chemistry essay theory objective obj Expo 2018 answers on whatsapp, gidifans Chemistry answer, solutionclass Chemistry answer, 042tvseries Chemistry answer, codedexam WAEC Chemistry answer, wapbaze Chemistry answer, wapextra Chemistry expo, Martinlibrary Chemistry expo, examgists WAEC Chemistry expo, WAEC Chemistry objectives answer, naija WAEC Chemistry expo free answer
Real and Confirmed WAEC Chemistry Questions and Expo Answer – May/June 2018
Verified WAEC 2018 May/June Chemistry OBJ and Essay Answer and Solution to the questions.
We appreciate you for reading On baze360, but we think it will be better you like our facebook fanpage and also follow us on twitter below.
: WAEC 2018 Chemistry Obj And Essay Answer – May/June Expo
: WAEC Chemistry Obj And Essay/Theory Solution Questions and Answer – MAY/JUNE 2018 Expo Runz. Ensure You Always Subscribe For Your Nex...