Explain how chemists can state with certainty that no one will discover an element between sulfur and chlorine?

What is the ratio of NO:N2 in the given reaction 4NH3+6NO->5N2+6H2O? A) 5:6 B) 6:5 C) 4:5 D) 5:4

Transition metals tend to A. form cations B. lose electrons from the ns subshell first C. form more than one ion D. all of the above

What are non-renewable energies called?

A mixture of methanol (Mw = 32.04 g/mol) and ethanol (Mw = 46.07 g/mol) has an average molecular weight of 43.01 g/mol. What is the mol fraction of methanol in this mixture?

How much MnO2 (s) should be added to excess HCl (aq) to obtain 295 mL of Cl2 (g) at 25 °C and 735 Torr?

Based on the enthalpy changes given for the reactions, which reactions are endothermic? (check all that apply) 2H2O → 2H2 + O2, ΔH = 484 kJ C + O2 → CO2, ΔH = - 394 kJ H2 + Br2 → 2HBr, ΔH = - 73 kJ 2NH3 → N2 + 3H2, ΔH = 92 kJ

Which of the following is not true about performing biological investigations reading and understanding Metric system

At 29°C, Kp = 5.3 ✕ 102 atm-2 for the following reaction. N2 (g) + 3 H2 (g) equilibrium reaction arrow 2 NH3 (g) When a certain partial pressure of NH3 (g) is put into an otherwise empty rigid vessel at 29°C, equilibrium is reached when 55.

If ice is heated at constant pressure of 0.0512 ATM will it

The sun's inner core is the hottest part of the sun true or false