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

1/60

Click to flip

60 Cards in this Set

  • Front
  • Back
Matter
Anything that occupies mass

Life is composed of _____
Chemical Element
A substance that cannot be broken down further.
Compound
A substance that contains two or more elements in a fixed ratio.
Atom
Smallest Unit of Matter
Oxygen
O
Carbon
C
Hydrogen
H
Nitrogen
N
Calcium
Ca
Phosphorus
P
Sulfur
S
Sodium
Na
Chlorine
Cl
Magnesium
Mg
Potassium
K
Structure of an Atom
1)Protons
2)Neutrons
3)Electrons
Atomic Number
Number of Protons
Mass Number
Number of Protons+Number of Neutrons
Mass# - Atomic#=
Number of Neutrons
# of Protons=
=Number of Electrons
Electrons Positioning
2 in First
8 In Rings After
Copper
Cu
Flourine
F
Iodine
I
Iron
Fe
Isotopes
Atoms of the same element that have different numbers of neutrons.
Protion
Mass #1
Deuterium
Mass #2
Tritium
Mass #3
Radioactive Isotopes
-Give off radiation
-Used for medical studies since they can be deteched in the body by special machinery.
Reactants=Product
Chemical Reactions Formula
H2O
Water
NaCl
Salt
C6H12O6
Glucose (Sugar)
H2+O2=H20
Unbalanced equation.
2H2+O2=2(H20)
Balanced equation.
Chemical Bond
A force that holds two atoms together
Covalent Bond (Molecule)
Share the electrons in their outer-shells.
Ionic Bond (Ion)
Give-Up/Acquire elections so that both atoms have complete outer-shells.
Single Bond
2 Electrons Shared
Double Bond
4 Electrons Shared
Acid
Any compound that produces hydrogen (H+) ions in solution.

Note:Ions are charged particles.
Note:Solution is water.
Base
Any compound that produces Hydroxide Ions (OH-)
Acid+Base=Salt+Water

HCl+NaOH=NaCl+H20
Neutralization.
Salt
An ionic compound produces during the neutralization reaction.

Note:NaCl
Red Litmus Paper
Turns Blue in Base
Blue Litmus Paper
Turns Red in Acid
Neutral Litmus Paper
Turns Blue in Base
pH (Hydrion) Paper
Determines pH on chart
Methyl Orange
Turns Red in an Acid
Phenolphthalem
Turns Red in a Base.
Mixtures (Liquid, Solid, Gas)
Two or more substances that have combined physically, but not chemically (by bonding).
Solution (Liquid)
When the Solute dissolves or disassociates in a Solvent.
Solute
The Material in the Solvent (H20)
Colloidal Dispersion
Particles can be seen, but are too small to settle out.
Suspension
Particles are large and settle to the bottom when left standing. They may stay if up the substance is in motion.

Ex:Blood.
Solution, Colloidal Dispersion, and Suspension are present in...
Living Cells and Tissues
Acid Precipitation
When acid particles and chemicals fall from the sky in the form of precipitation.

Ex:Rain, Snow, Fog.
The main causes of Acid Precipitation are...
Sulfur and Nitrogen Oxides
pH of Acid Rain is less than...
pH 5.6