Salters Marks Scheam

SECTION 1 M v ? Section 1.1 1 2 3 a 2.0 f 50.2 a revenue Mass of try out/g 56.0 80.0 63.5 b 5.3 c 1.3 d 10.0 e 5.0 b Neodymium Amount of flavor/mol 2.00 0.50 Number of atoms 6.02 ¥ 1023 6.02 ¥ 1023 12.04 ¥ 1023 b The sex act good turn of moles of iodine and oxygen. c To change the relative number of moles into the ratio of moles of oxygen relative to 1 mole of iodine. d In hunting lodge to produce a ratio involving squ ar come e I2O5, I4O10, I6O15, etc. f The molar lambast is demand. 7 a H2O f CuO 8 a 92.3 9 a SiH4 f CaCO3 10 a CH2 f C3H4 11 a H2O2 12 a 2 13 a 30 f 242 b CO g CaO b 7.7 c CS2 h SO2 c CH e C2H6O e C4H5 e C6H12 e 2 e 158 e 5 d CH4 i MgH2 e Fe2O3 v 162 4 a 1 f 0.5 b 0.5 g 0.25 c 0.25 h 0.1 d 0.1 i 2 e 0.25 j 5 b CO c carbonic acid suck d MgO g HClO3 h NaHCO3 b P2O3 c AlCl3 d BH3 g CH2O h C12H22O11 b CO b 11 b 78 g 132 c C2H2 c 2 c 130 c 10 d C6H6 d 10 d 100 d 0.02 Atoms of fuzz ar approxima tely twice as heavy as atoms of sulphur. thusly the same mass contains plainly half as umpteen moles of copper as it does of sulphur. 5 Black copper(II) oxide (CuO) contains equal amount of copper and oxygen particles (Cu2+ and O2 ions).

Red copper(I) oxide (Cu2O) contains twice as galore(postnominal) copper particles as oxygen particles (Cu+ and O2 ions). a The mass of the sample is needed to be sure that iodine and oxygen are the only elements in the compound. 6 14 a 2 b4 f 1 ¥ 106 Section 1.2 1 a b c d e f g h i j 2Mg + O2 Æ 2MgO 2H2 + O2 Æ 2H2O 2Fe + 3Cl2 Æ 2FeCl3 CaO + 2HNO3 Æ Ca(NO3)2 + H2 O CaCO3 + 2HCl Æ CaCl2 + CO2 + H2O H2SO4 + ! 2NaOH Æ Na2SO4 + 2H2O 2HCl + Ca(OH)2 Æ CaCl2 + 2H2O 2Na + 2H2O Æ 2NaOH + H2 CH4 + 2O2 Æ CO2 + 2H2O 2CH3OH + 3O2 Æ 2CO2 + 4H2O 2 a b c d e a b c d e 2Ca + O2 Æ 2CaO Ca + 2H2O Æ Ca(OH)2 + H2 C + CO2 Æ 2CO N2 + 3H2 Æ 2NH3 C3H8 + 5O2 Æ 3CO2 + 4H2O Zn(s) + H2SO4(aq) Æ ZnSO4(aq) + H2(g) Mg(s) + 2HCl(aq) Æ MgCl2(aq) + H2(g) MgCO3(s) Æ MgO(s) + CO2(g) 2C2H6(g) + 7O2(g) Æ 4CO2(g) + 6H2O(l) BaO(s) + 2HCl(aq) Æ...If you want to get a full essay, govern it on our website: OrderCustomPaper.com

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