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

1/15

Click to flip

15 Cards in this Set

  • Front
  • Back
John Dalton's ideas of atoms are...
1.In any element,all atoms are exactly alike.
2. atoms of different elements are different.
3. Atoms can't be broken into smaller pieces
4. Atoms of each element have a unique
mass
5. Atoms of two or more elements can combine to form compounds
6. Masses of elements in a compound are always in a constant.
Elements are made up of tiny particles called_____________.
atoms
Discuss what is a formula.
A combination of symbols that show the ratio of elements in a compound.
Discuss how a Mixture is different from a compound.
Mixture is two or more elements or compounds or both combined but not chemically and a compound is two or more elements chemically combined to form a new substance.
Explain the difference between physical change and chemical changes.
Physical-- alters form or appearance of matter but doesn't form a new substance. Chemical changes matter into an entirely new substance.
What is the international system of units uses what unit of measurement for mass?
grams or kilograms
What is the international system of units uses what unit of measurement for volume?
cubic centimeters

cm
What is the international system of units uses what unit of measurement for density?
grams per cubic centimeter

g/cm
What is the formula for volume?
length x width x height= volume

l x w x h
What is the formula for density?
Density = mass per volume

D=m/v
The force that holds two or more atoms together is called a _______________.
chemical bond
A combination of two or more atoms that are bonded together is called a _________________.
Molecule
A substance made up of two or more elements chemically combined in a specific ratio.
What is a compound?
Discuss the meaning of an element.
Simplest form that cannot be broken down.
Name the 3 kinds of matter.
Elements
Compounds
Mixtures