Exam 1

 

 

Extensive Properties 

 

 

depend on size of sample

examples:mass,volume,weight,length 

 

 

Intensive Properties 

 

 

do NOT depend on sample size

examples: color,odor,luster,boiling point 

 

 

Dalton’s Atomic Theory 

 

 

1.All matter made up of atoms

2.All atoms identical of same element

3. Atoms not created or destroyed by shmeical reaction

4.Atoms combine in single whole number ratios to form compounds 

 

 

Chemical Properties 

 

 

 

Chemical reactions with other substances 

 

 

 

Chemical Change 

 

 

 

Examples: rust, oxidization 

 

 

Physical Properties 

 

 

mass,volume,density,temperature 

 

 

 

Physical Change 

 

 

Does NOT change chemical compostition

examples; vaporization, melting, seperation 

 

 

 

Law of Definite Proportions 

 

 

 

All samples of the same compound always contain the same proprtions by mass of the component elements 

 

 

 

Matter 

 

 

 

anything that occupies space and has mass 

 

 

Energy

 

 

 

Capacity to do work and has NO mass 

 

 

Homogenous Mixture 

 

 

 

uniform compostion

example: salt water 

 

 

 

Hetrogeneous Mixture 

 

 

NOT uniform throughout

Example: sandwich, choclate chunk ice cream 

 

 

 

Law of the Conservation of Mass 

 

 

 Mass is not created or destroyed in a chemical reaction

 

 

Law of the conservation of Energy 

 

 

 

energy can be converted or transfered but NOT created or destroyed 

 

 

 

 

Milli 

 

 

10-3

1000mg=1g 

 

 

 

deci 

 

 

 

10-1

 10dm=1m

 

 

 

Centi 

 

 

10-2

100cm=1m 

 

 

 

Kilo 

 

 

 

10 3

1kg=1000g 

 

 

 

 

SI UNit for Length

 

 

 

Meter (m) 

 

 

 

SI UNit for  Mass

 

 

 

Kilogram

(Kg) 

 

 

 

SI UNit for  Time

 

 

 

Second

(s) 

 

 

 

SI UNit for  Temperature

 

 

 

Kelvin

(K) 

 

 

 

Celsius to Farenheight 

 

 

 

tc=5/9 (tf-32) 

 

 

 

Farenhight to celsius 

 

 

 

 

 

 tf=9/5tc (+32)

 

 

 

Kelvin to Celsius 

 

 

 

tk=tc+273 

 

 

 

 

Metaloids 

 

 

 

physical properties of a metal, but chmeical properties of a nonmetal 

 

 

 

 

WHo is responsible for the mass/weight of an atom? 

 

 

 

 

Protons and Neutrons 

 

 

 

 

What is the Atomic Number? 

 

 

 

how many protons are in the atom 

 

 

 

 

What is the Atomic Mass?

 

 

 

The # of protons +the #of neutrons 

 

 

 

 

What is the Nuclear Charge?

 

 

 

The charge of the nucleaus

(protons) 

 

 

 

What is the atomic charge? 

 

 

 

In a stable molecule it hould be zero.

 

 

 

 

General Formula for weighted average 

 

 

 

 

[Mass of isotope 1] x (abundence/100%) +        [Mass of Isotope 2] x (abundence/100%) 

Kinetic Energy Formula
mv2/2
how many cm in 1 in?
2.54
How many pounds in a Kg?
2.2
How many Liters in 1 gallon?
3.78
how many inches in a meter?
39.4
how many joules in a calorie?
4.184
x

Hi!
I'm Larry

Hi there, would you like to get such a paper? How about receiving a customized one?

Check it out