Fill in each blank by writing the letter of the technique (a through h) for factoring the polynomial. 5x2 10x ______________
1.2 Exercise 1 – Avogadro’s Number and reacting masses 1. Calculate the number of 2. Calculate the mass of 3. Calculate the relative moles present in each of the substance present in the molecular mass of the following cases: following cases: following substances and suggest a possible identity of each substance: a) 2.3 g of Na a) 0.05 moles of Cl 2 a) 0.015 moles, 0.42 g b) 2.5 g of O 2 b) 0.125 moles of KBr b) 0.0125 moles, 0.50 g c) 240 kg of CO