Question

Which of the following molecules or ions is NOT polar? PCl_3 I_3^- H_2O N_2O SO_2 An iron ore, magnetite, contains only iron and oxygen. In refining 100.0g of the ore, 72.35 g of iron are obtained. What is the empirical formula of the ore? Fe_2O_3 Fe_2O_4 FeO_2 FeO Fe_2O_5 Fe_2O_2(s) and powdered aluminum can react with great output of heat to form molten iron and Al_2O_3 when this reaction equation is balanced, what are the stoichiometric coeeficients in the following order Fe_2O_3, Al, Fe, Al_2O_3? 1, 1, 1, 1 2, 1, 1, 2 2, 2, 2, 2 1, 1, 2, 2 1, 2, 2, 1 For the series methane amonia and water, the bond angle is increases in the following order H_2O < NH_3 < CH_4. This trend is due to A decreasing effective nuclear charge A decrease in the number of ione pairs An increase in atomic radius An increase in the polarity of the molecules. an increasing effective nuclear charge What is the oxidation number of carbon in the bicarbonate ione (HCO_3^-)? + 2 -2 + 4 - 4 + 1 Ethylamine, C_2H_5NH_2, acts as a weak base in water. Which expression best repracents this behavior? C_2H_3NH_2(aq) + H_2O(l) rightarrow C_2H_3NH^-(aq) + H_3O^+(aq) C_2H_3NH_2(aq) + H_2O(l) C_2H_3NH^-(aq) + H_3O^+(aq) C_2H_3NH_2(aq) + H_2O(l) C_2H_6(aq) + NH_3(aq) + OH^-(aq) C_2H_3NH_2(aq) + H_2O(l) rightarrow HCN(aq) + NH_3(g) + OH^-(aq) C_2H_3NH_2(aq) + H_2O(l) C_2H_5OH(aq) + NH_3(aq) When the oxidation reduction reaction shown hear is balanced using the smallest whole number coefficients, how many electrons are transferred? Al(s) + Cl_2(g) rightarrow Al_2Cl_6(s) 2 3 6 12 0 How many grams of CO_2 would result from the complete combustion of 4.00 mol butane (C_4H_10)? 24.2 g 176 g 7.4 g 96.9 g 1410 g

Answer 1

Dear Sir,

more questions are there, answers explanation writing taking time. can we upload two images becasue single image not clear.
36 4x58 + 26x3 』쎄