Consider the following two molecules:(I) CCl4 and(II) HCl Which of the following is true about the polarity of these molecules? [Hint: Draw the Lewis dot structure and SNAP rule.]

Note: Use the Smaller Amount of Product (SAP) approach for this problem. All remaining conversion steps begin with the SAP amount.Octane (C8H18, MM = 114.23 g/mol) is a component of gasoline. Combustion of octane is represented by the following balanced chemical equation2 C8H18(l) + 25 O2(g) → 16 CO2(g) + 18 H2O(g)If a reaction mixture contains 218 g C8H18 and 455 g O2, (a) Identify the limiting reactant and excess reactant based on the SAP math. [4 points](b) How many grams of CO2 are expected to form? [1 point](c) How many moles of H2O are expected to form? [2 points](d) How many grams of excess reactant are consumed in the reaction? [2 points](e) How many grams of excess reactant are left over once the reaction is complete? [1 point]Enter the following in the text box provided and show your full work on scratch paper.(a) Limiting reactant = _____________ (type the chemical formula) and excess reactant = _____________ (type the chemical formula).(b) Mass of CO2 = ______________ g CO2. Enter the value in the text box.(c) Moles of H2O expected to form = ______________ mol H2O. Enter the value in the text box.(d) Mass of excess reagent consumed in the reaction = ______________ g. Enter the value in the text box.(e) Mass of excess reagent left over after the reaction is complete = ______________ g. Enter the value in the text box.

Consider a redox reaction: Mg + Cu2+ → Mg2+ + Cu. Which of the following is/are true? Select all that apply.(Hint: OIL RIG)(A) Mg is reduced.(B) Cu2+ is reduced.(C) Mg is oxidized.(D) Mg is oxidized.

The balanced equation for the combination reaction of hydrogen gas and solid iodine is: H2(g) + I2(s) + 52 kJ → 2 HI(g) Is this reaction is exothermic or endothermic? [BLANK-1]. The enthalpy change (∆H) value for this reaction should be indicated with positive or negative sign. [BLANK-2].

What coefficient is placed in front of O2 to complete the balancing of the following equation?  CH4(l) + ? O2(g) → CO2(g) + 2 H2O(g)

Consider a hypothetical compound with the chemical formula: C15H14O11. The molar mass of this compound is _________ g/mol.Note: Make sure to use the atomic masses given in the periodic table provided. Round the final answer to 5 significant figures.

If the electronegativity difference between the bonded atoms is 2.0 or higher, the bond is considered _____________.

Consider three samples of sodium compounds:1 mol Na2SO4, 1 mol Na2CO3, and 1 Na2HPO4 All three samples have same number of sodium atoms.

The calculations show that a reaction should produce [x] g of the product. However, a chemistry lab experiment produces [y] g of pure product. What is the percent yield of this product? ____________%. Just enter the number (without percent symbol).

Consider the following reaction: 2 KClO3(s) →∆ 2 KCl(s) + 3 O2(g)What type of reaction is this?