Answer Happy

5. Nitrogen gas and hydrogen gas react to form aantal be Lollowing tention Ng 2 NHS are mixed, how many grams of NRC 17.0 g/molol can be produced ) A. 300.9 3. 451.9 C. 150. g D. 287.9 B. 143. g 6. The density of a 16.9 NOK solution : 1.19 g/L. What is the molarity of NaOH in the solution? The tolar mass of Naoh is 40 g/mole.) A. 2.81 M B. 4.24 M C. 1.76 M D. 5.04 M E. 3.56 M 7. The formal charges of the three oxygen atoms in a Seoz molecule are A. -1, -1, -1 B. 0,-1,-1 c. -2,-2, -2 D. 0, 0, -1 E. 0,0 0 8. What is the bond angle in so 2-? A. 180 degrees B. slightly less than 109.5 degrees c. slightly less than 120 degrees D. 109.5 degrees E. 120 degrees 9. The following reaction is classified as a reaction. Fe2(CO3)3 Fe2O3 + 3 CO2 A. single replacement B. decomposition c. combination D. double replacement E. combustion