Question 1
Easymultiple_choice
Which is a chemical change?
Topic: Identifying Chemical Change · Skill: Identify observable evidence of a chemical reaction
Featured Assignment
Final Assessment: Chemical Reactions and Equations
Test your full Chapter 1 readiness
No login needed. Try it now.Create an account later to save progress and get personalized practice.
Skills
Identify observable evidence of a chemical reaction, Distinguish chemical changes from physical changes, Infer reactants and products from a reaction description, Read chemical equations as statements of reactions, Convert word equations into skeletal chemical equations
Question types
multiple choice
Preview
Preview questions
A quick look at the learning flow
Sample preview - start assignment to submit answers.
Section A: Chemical Change and Equations · 10 questionsSection B: Balancing Chemical Equations · 10 questionsSection C: Reaction Types and Energy · 10 questionsSection D: Redox, Corrosion and Rancidity · 10 questions
Section A: Chemical Change and Equations
Review signs of reaction, reactants-products, word equations and symbols.
Choose the best answer for each chapter review question.
Question 2
Easymultiple_choice
In , the reactants are:
Topic: Identifying Chemical Change · Skill: Distinguish chemical changes from physical changes
Question 3
Mediummultiple_choice
A reaction in which a gas is produced may be shown by:
Topic: Identifying Chemical Change · Skill: Infer reactants and products from a reaction description
Question 4
Mediummultiple_choice
Which is most likely a physical change?
Topic: Identifying Chemical Change · Skill: Read chemical equations as statements of reactions
Question 5
Mediummultiple_choice
The skeletal equation for calcium carbonate decomposing is:
Topic: Chemical Equations · Skill: Convert word equations into skeletal chemical equations