Lithium Nitride Reactions and Properties

The video tutorial explains the process of balancing and classifying a chemical reaction between lithium and nitrogen. It identifies the reaction as a synthesis, forming the ionic compound lithium nitride (Li3N). The tutorial details the steps to balance the chemical equation and determine the state of the product as a solid under standard conditions.

What is the initial task given in the video regarding the reaction?

• To identify the reactants only

• To balance and classify the reaction

• To measure the temperature change

• To determine the reaction speed

What type of reaction occurs between a metal and a non-metal?

• Combustion

• Synthesis

• Single replacement

• Decomposition

What is the stable ion formed by lithium?

• Li+

• Li-

• Li3+

• Li2+

What is the correct formula for the compound formed from Li+ and N3-?

• LiN

• LiN3

• Li2N3

• Li3N

What is the charge of the nitride ion?

• N3+

• N+

• N3-

• N2-

How many lithium atoms are needed on the left side to balance the equation?

• Six

• Four

• Eight

• Two

What is the state of lithium nitride at standard conditions?

• Liquid

• Gas

• Aqueous

• Solid

Why is lithium nitride not aqueous in this reaction?

• Because there is no water present

• Because it is highly reactive

• Because it is a gas

• Because it is a liquid

What is the final balanced equation for the reaction?

• 3 Li + N2 → Li3N

• 2 Li + N2 → Li2N3

• 6 Li + N2 → 2 Li3N

• Li + N2 → LiN

What is the purpose of writing a subscript 's' after Li3N?

• To indicate it is a gas

• To indicate it is a liquid

• To indicate it is a solid

• To indicate it is aqueous