Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/8

Click to flip

8 Cards in this Set

  • Front
  • Back
What is a physical change?
A change in physical properties.
How can you tell if a change is physical?
- no new substance is created
- change of phase (liquid to gas, etc.)
- change of amount
- mixing
- change of color tint
What is a chemical change?
A change in chemical properties.
How can you tell if a change is chemical?
- New substances that differ in chempical properties and composition are formed
- Bubbles (gas formation)
- Precipitate forms
- Heat and light
- Color change
What is the LAW OF CONVERSION OF MATTER?
Matter cannot be created or destroyed by chemical change. (No change is total mass.)
Classification of Matter - Matter must be one of what three things?
- Element
- Compound
- Mixture
What are the properties of an element?
- Pure substance
- Cannot be broken down into other substances by chemical change
What are the properties of a compound?
- Two or more elements
- Chemicalled combined