law of multiple proportions 118 videos

History as Mystery
AP US History AP US History Videos
Outsmart the AP U.S. History test and pick up guaranteed strategies for test success.
Multiple choice questions 
Probability of Independent Events
Precalculus Topics in Discrete Math
How to find the probability of independent events.
probability multiple events overlap 
Probability of Independent Events
Algebra 2 Combinatorics
How to find the probability of independent events.
probability multiple events overlap 
Direct Variation
Algebra 2 Functions
How to define direct variation.
direct variation proportional constant of variation 
Vector Operations in 3D
Precalculus Vectors and Parametric Equations
How to perform vector operations like addition, scalar multiplication, the dot product, and finding the magnitude, in three dimensions.
vectors components vector addition scalar multiplication the dot product the scalar product magnitude length three dimensions 
Spring Potential Energy
Physics Oscillatory Motion
Understanding the spring potential law.
spring potential energy 

Solving Equations with fractions and decimals by "Clearing"
PreAlgebra Solving Equations and Inequalities
Solving equations with fractions by multiplying by the least common multiple

Commutative, Associative
PreAlgebra Properties of Numbers
Overview of the commutative and associative properties for addition and multiplication

Distributive
PreAlgebra Properties of Numbers
Introduction to the distributive property of multiplication over addition or subtraction

Stoichiometry
Chemistry Chemical Reactions
How to use stoichiometry to work with chemical equations.
stoichiometry law of conservation of mass 
Similarity Shortcuts
Geometry Similarity
How to determine if two triangles are similar using a shortcut.
similar triangles AA SAS SSS proportion congruence 
Corresponding Parts of Similar Triangles
Geometry Similarity
How to relate corresponding altitudes, medians and angle bisectors in similar triangles.
similar triangles altitude median angle bisector proportional 
Angle Bisectors and Opposite Side Ratios
Geometry Similarity
How to relate the sides of an angle bisected and the lengths of the opposite side.
angle bisector opposite side ratio proportion 
Indirect Variation
Algebra 2 Functions
How to define indirect variation.
indirect variation inverse proportion constant of variation 
Conservation of Energy
Physics Energy and Momentum
How energy is neither created nor destroyed.
conservation energy first law of thermodynamics 
Conservation of Energy
Physics Heat and Thermodynamics
How energy is neither created nor destroyed.
conservation energy first law of thermodynamics 
Entropy
Physics Heat and Thermodynamics
Understanding the concept of entropy.
entropy second law thermodynamics disorder