Replacement Lecture Week 1 (2nd hour Chapter 1.0)

Replacement Lecture Week 1

(2nd hour Chapter 1)

Chemistry Lecture Group E1

5/8/2021

9.00pm-10.00pm

Prepared by : Mdm Farhana

Content for today

• Introduction

• Video (duration 2 mins) - Balancing chemical equation using inspection method

• Objective question 1 & 2

• Video (duration 29 mins) -Balancing redox equation (acidic medium)

• TASK 1 (15 mins) & submission via Google Classroom

• Video (duration 5 mins) - Balancing redox equation (basic medium)

• Video (duration 3mins) - Introduction of limiting reactant

Content for today

• Objective Questions 3 & 4

• Video (duration 3 mins) - Percentage yield

• Objective Questions 5

• Total duration = 1 hour

Multiple Choice

__ Al + __ FeO → Al₂O₂ + __ Fe

• 1, 1, 2

• 2,1,2

• 2, 2, 2

• 2,4,2

Multiple Choice

Balance this equation

_Zn+_HCl-->_ZnCl₂ +_H₂

• 1,1,2,1

• 1,1,1,2

• 1,2,1,1

• 2,1,1,1

Task 1: Balance the following redox equation in acidic medium

Please answer the question on a paper. Once it's done, click on the next slide in order to submit the task.

Submission of Task 1

Please go to your Google Classroom apps & upload the solution for task 1

Multiple Choice

What is a limiting reactant?

• the reactant that is completely consumed in a reaction & it control/limit the quantity of product formed.

• the reactant that is in excess

• the product that you can make the most of

• the amount of reactants that react with each other

Multiple Choice

You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich. If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly, which one is the limiting reactant?

• bread

• jelly

• peanut butter

• sandwich

Multiple Choice

In a lab, a scientist calculate that he should produce 12.3g of product in his experiment. When he finished the experiment, he obtained the product that weigh 10.1g. What is the percentage yield of the reaction?

• 82%

• 0.82%

• 10.1 %

• 100%

We are done for our lecture session!:)

Thank you for your cooperation. Have a good weekend everyone!

Open Ended

Please give some feedback regarding our lecture for today. How is your experience in learning about subtopic 1.3 via Quizizz?