12 Questions
What is a chemical change?
Causes a substance to turn into a new substance
Which type of change involves heat moving out from the system into the surroundings?
Exothermic change
According to the Law of Conservation of Mass, what remains constant in a chemical reaction?
Mass
What are substances called that are broken down by a chemical change?
Reactants
Which of the following is NOT one of the main states of matter?
Plasma
What causes changes in states of matter?
Physical changes
What happens to solids as temperature increases?
They turn into liquids
According to Kinetic Molecular Theory, what is the main reason for the volume that matter occupies?
The space between particles
What is a pure substance that contains only one kind of particle?
Element
In which state of matter are the particles very spread out and move in straight line, random paths?
Gas
What is a homogeneous mixture that has 'uniform' composition and one phase?
Solution
What is the particle in a mixture that is present in smaller proportions and is dissolved?
Solute
Test your knowledge on chemical changes that alter the composition of substances and lead to the formation of new substances. Explore how energy is transferred and transformed during changes of matter, involving the system and surroundings.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
