Q1) The name of S6Cl₂ is a) hexasulfur bichloride d) heptasulfur dichloride **** ad inds b) hexasulfur dichlorine e) hexasulfur dichloride c) 106 g d) 93.4 g All. c) hexasulfide dichloride Q2) Consider the following reaction 2A1+ 3Cl2→ 2AlCl3 What is the maximum weight of AlCl3 (M.Wt. 133.5) that could be obtained from a mixture 0.750 mole of Al and 1.05 mole of Cl₂? a) 100 g b) 90.4 g e) none of the above

General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 1.135 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen-rich environment. The products of the combustion were 1.235 g CO, (g) and 0.6321 g H, 0(g). Determine the empirical formula of the gasoline additive. empirical formula: CHP6

2 K + Cl2 → 2 KCI 4A. How many grams of potassium chloride are produced from... ..2.50 g of potassium and excess chlorine? ...1.00 g of chlorine and excess potassium? 4B.

Part a) When FeS3 • 2H2O is heated, it gives off water, SO2 and Fe2O3. Is this a chemical or physical change? When CuSO4 • 5H2O is heated, it gives off water and CuSO4. Is this a chemical or physical change? Which of these changes can be easily reversed? Part b) Is the molar ratio of the products is different from the molar ratio in the hydrate formula, has a chemical or physical change taken place?

Hydrocarbon mixtures are used as fuels. What mass of CO2 gas is produced by the combustion of 343.5 g of a mixture that is 50.8 % CH4 and 49.2% C3H8 by mass? (Note that the CH4 and C3H8 do not actually react with each other. Each of them reacts separately with oxygen.)

Complete combustion of 8.582 g of a particular hydrocarbon yielded 27.73 g of CO2 and 9.080 g of H2O. What is the empirical formula of this hydrocarbon?

Assume the following theoretical situation. You look with a very high powered microscope and see 4 CO molecules and 2 02 molecules. Later, you looked again. These molecules have reacted and this time, You see 4 CO2 molecules. Write a balanced equation for this reaction, using the simplest whole number ratio.

1 pts 2req 2 pt M 90 Use the References to access important values if needed for this question. According to the following reaction, how many moles of chlorine gas are necessary to form 0.220 moles phosphorus trichloride? phosphorus (P₁) () + chlorine (g) → phosphorus trichloride (1)

carbon 12.01 hydrogen 1.01 oxygen 16.00 A chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences, make and justify a claim about the number of moles of ethanol the chemist will use.