Chapter1
Chapter2
Chapter3
Chapter4
all
100
true or false the number of protons will never change
true
100
electrolytes are what
compound that conducts electrical current when melted or a dissolved in water
100
true or false Avogadro's number is 6.02x1023
true
100
wich theory of heat came first, Phlogiston or caloric
phlogiston
100
kinetic energy is the energy of ________
motion
200
Isotopes are the change in _________ well ions are the change in _________.
neutrons, electrons
200
a _____ ion is released by an acid and a _______ ion is released by a base
H+, OH-
200
what two elements are in a hydrocarbon
hydrogen and carbon
200
what is the formula for work
W=Fxd
work = force times distance
200
What is the name of this WHMIS symbol:
can cause death or toxicity with short exposure to small amounts
skull and crossbones
300
how do you find the valence energy level
you look at the group number and ignore the 1 in front of a teen group, the number in the one's group is the number of valences electrons
it only applies to groups 1,2,13,14,15,16,17 and 18
300
true or false, intramolecular forces is the force between molecules
false
300
what does acid-base neutralization produce
salt and water
300
what term goes with this definition:
the quantity of energy required to increase the temperature of 1 g of a substance by 1°C
specific heat capacity
300
what is the ‘Flame’ WHMIS symbol
(Draw or describe it)
400
ionic bond are between a metal and a nonmetal, and a molecular bond is between a _______ and a __________.
nonmetal, nonmetal
400
the PH scale ranges from ___ to ___, what number is neutral
0,14
7 in neutral
400
what is the difference between incomplete and complete combustion
incomplete has less oxygen so it produces CO2, H2O, CO, C (soot)
complete makes water vapor and carbon dioxide
400
a calorie is what
the quantity of energy required to increase the temperature of 1.0 g of water by 1.0 °C
400
state the law of conservation of mass
the law stating that matter cannot be created or destroyed during a reaction
500
a gas discharge tube is what
a sealed glass tube containing gas at low pressure; when a voltage is placed across the tube, a beam of electrons flows through the gas showing a color specific to that gas
500
what is the word for this definition: a system to identify which metal cation is present in an ionic compound; the charge of the ion is written in Roman numerals inside of brackets
Stock system
500
explain single replacement and double replacement reactions
single: a reaction in which one element takes the place of another element in a compound
double: a reaction in which the cations of two different compounds switch places, forming two new compounds
500
name the three main people that invented and improved on the steam engine.
1. Thomas Savery
2. Thomas Newcomen
3. James Watt
500
what is the skeleton equation
a chemical equation without coefficients (unbalanced)