Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

Chemical Equations - Activity 1.1 Word Equation

14 Questions

1 Views

Chemical Equations - Activity 1.1 Word Equation

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the simplest way to represent the chemical reaction when a magnesium ribbon is burnt in oxygen?

Magnesium oxide → Magnesium + Oxygen

Magnesium + Oxygen → Magnesium oxide

Mg + O2 → MgO (correct)

MgO → Mg + O2

In a chemical equation, where are the reactants written?

Left-hand side (LHS) (correct)

Below the arrow

Right-hand side (RHS)

Above the arrow

What is the product of the chemical reaction when a magnesium ribbon is burnt in oxygen?

Magnesium and Oxygen

Magnesium ribbon

Magnesium oxide (correct)

Oxygen gas

What does the arrow in a chemical equation show?

Direction of the reaction Signup and view all the answers

What happens to a magnesium ribbon when it burns in oxygen?

It changes into magnesium oxide Signup and view all the answers

Which representation is used to show the change of reactants to products in a chemical equation?

Arrow placed between reactants and products Signup and view all the answers

What does a chemical equation represent?

A chemical reaction Signup and view all the answers

In a balanced chemical equation, the number of atoms of each element is:

Equal on both sides Signup and view all the answers

Which law states that mass can neither be created nor destroyed in a chemical reaction?

Law of Conservation of Mass Signup and view all the answers

What does a skeletal chemical equation represent?

An unbalanced chemical equation Signup and view all the answers

Which word-equation can be represented by the chemical equation Zn + H2SO4 → ZnSO4 + H2?

Zinc + Sulphuric acid → Zinc sulphate + Hydrogen Signup and view all the answers

What is the purpose of balancing a chemical equation?

To make it more concise and useful Signup and view all the answers

According to the given text, what does the law of conservation of mass state?

Mass can neither be created nor destroyed in a chemical reaction Signup and view all the answers

What should be equal on both sides of a balanced chemical equation?

$\frac{\text{Number of atoms}}{\text{Molecules}}$ Signup and view all the answers