The equation below shows lithium reacting with nitrogen to produce lithium nitride. 6li+n2=2li3n if 12 mol of lithium were reacted with excess nitrogen gas, how many moles of lithium nitride would be produced?

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture