Chemistry Flashcards
Pretty much everything except the math problems
Matter is anything that has _______ and ______
Mass and Volume
Mass is measured in
Grams
Volume is measured in
Liters
Distance is measured in
Meters
Time is measured in
Seconds
Kilo
1,000
Deci
1/10
Centi
1/100
Milli
1/1,000
1 in = ______ cm
1 in = 2.54 cm
Pure Substance
A substance whose properties are the same throughout
(ex: Gold, water, etc.)
Mixture
A combination of 2 or more pure substances
Homogenous Mix
A mixture whose composition is the same throughout
(ex: mineral water, sugar in tea)
Heterogenous Mix
A mixture whose composition is different in different parts of the sample
(ex: boba tea, salad, sand, dirt)
The Law of Mass Conservation
Matter cannot be created or destroyed
What’s the difference between elements and compounds?
Compounds can be broken down into simpler substances, elements cannot.
State two principles of Dalton’s atomic theory
-All matter is comprised of atoms, which are indivisible and indestructible
-All atoms of an element are identical
What does it mean when we say that light has a “dual nature?”
It means that light is both a particle and a wave
What are the four parts of a wave?
Crest, trough, amplitude, and wavelength
How to convert nm to m?
Multiply nm by 10 to the -9th power
What is the velocity of light?
3.00 x 10 to the 8th power
What is the density formula?
d = m/v
What is the Frequency formula?
f = v/lambda (greek symbol)
What is the energy formula?
E = h x f
