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Q1— Section header —
Q1— Section header —
1.1(2\
1.2(2\
1.3(2\
1.4(2\
1.5(2\
1.6(2\
1.7(2\
1.8(2\
1.9(2\
1.10(2\ [20] 1120
Q2— Section header —
Q2— Section header —
2.1Electronegativity is a measure of the tendency of an atom in a molecule to attract bonding electrons. Elektronegatiwiteit is maatstaf van die neiging van n atoom in molekuul om bindingselektrone aan te trek
2.2(2\
2.3
2.4The bonds in both molecules are polar due to the difference in electronegativity molecule is angular and because the charge distribution is asymmetrical around the central atom the molecule is polar. molecule is linear and because the charge
2.5.1X = bond energy Y = bond length X = bindingsenergie Y = bindingslengte (2\
2.5.2atoms. Die energie benodig om een mol van sy molekules in aparte atome op te breek (2\
2.5.3
Q3— Section header —
Q3— Section header —
3.1The atmospheric pressure. Die temp ratuur waar teen die dampdruk van n stof aan die atmosferiese druk gelyk is
3.2
3.3Glycerine, It has the highest boiling point. Glisirien, dit het die hoogste kookpunt (2\
3.4
3.5ventilated room/use a fume cupboard Vermy dit om naby n oop vlam te werk Werk in n goed geventileerde vertrek /gebruik n dampkas (2\
3.6
3.714
Q4— Section header —
Q4— Section header —
4.1When the temperature of a gas increases, the average speed of the particles also increases the gas occupies a greater volume than it did at the start Wanneer die temperatuur van n gas toeneem , sal die gemiddelde spoed van
4.1.2(4\ 100 120 140 160 100 120 Volume (cm Temperature (
4.1.6
4.1.4
4.1.5= 163,31 cm (3\
4.1.6reguitlyn bo grafiek (groter helling\ in
Q4— Section header —
4.2.1pV = nRT 96 x 10 0,32 x 10 8,31 n = 0,012 mol n = 0,012 M = 64,17 g
4.2.2(1\ [21] 100 120 140 160 180 -300 -20021
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Q5— Section header —
5.1Amount of solute per litre of solution. Hoeveelheid oplosmiddel per liter oplossing (2\
5.2c = 0,10 mol.dm (3\
5.3.1compound. Empiriese formul e is die eenvoudigste heelgetal verhouding tussen die elemente in n verbinding (2\
5.3.2Element Simplest ratio Eenvoudigste verhouding 26,58 26,58/39 = 0,68 1 x 2 = 2 35,35 35,35/52 = 0,68
Q6— Section header —
Q6— Section header —
6.1Limiting reagent in a reaction is the reactant that is consumed completely. It determines the maximum amount of product that is made. Beperkte reagens in n reaksie is die reagens wat vo ledig opgebruik word.
6.2(CH 0,2 0,1 0,02 mol 0, 12 mol Mole ratio Mol verhouding ,02 mol CH
6.3in excess Massa NaHCO in oormaat m = nM m = (0,12 0,2\ m = 8,4 g (3\
6.40,02 mol CH = nV 0,02 22,4 0,448 dm (4\ [15]15
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Q7— Section header —
7.1Exothermic energy is given out. Eksotermies, energie word afgegee. (2\
7.2Energie is nodig om die bindings tussen atome/ione te breek (2\
7.3Produces a greenhouse gas and Verwaardig n kweekhuisgas wat tot aard verwarming kan bydra (2\
Q8— Section header —
Q8— Section header —
8.1Acid is a proton donor Suur is n protonskenker (2\
8.2conjugate pairs/ gekonjugeerde pare + NH + NH (4\ n Stof wat as n suur of n basis kan optree
8.3.2n = cV = (0,2\(0,1\ = 0,02 mol (3\
3.3= (0,02\(0,1\ = 0,002 mol (excess\ = 2(0,002\ = 0,004 mol react = 0,02 0,004 = 0,016 mol = 0,008 mol
Q9— Section header —
Q9— Section header —
9.1the increase in oxidation numbers Oksidasie is die toename in oksidasiegetalle (2\
9.2.1Cu(s\ (2\
9.2.2Silver ion/ Silwerioon (2\ Cu (2\
9.3.4Cu Cu + 2Ag + 2Ag balancing/ balansering (4\ + 2Ag +1 oxidation number changes from +1 to 0, gaining electrons, reduction.
Q10— Section header —
Q10— Section header —
10.1Oopgroefmyn Ondergrondse myn (2\
10.2Create job opportunities /Local communities benefit from infrastructure Provides opportunities for other industries Skep werksgeleenthede/Plaaslike gemeenskappe verkry voordeel ten opsigte van infrastru
10.3Changing landscape Air pollution Resource consumption Water poisoning Verander ende landskap Lugbesoedeling Hulpbron
10.4too soft t is te s ag (1\
10.5any other ebruik in rekenaar stroombane/ Gebruik as 'n hitt beskermer in ruimtepakke/ enige ander relevante antwoord (1\