Vocabulary that Matters
When one or more substances (reactants) are changed into new substances is called this (products).
What is a chemical reaction?
The other word for base
What is alkaline
When the number of atoms are equal on both sides of the equation, this law has been fulfilled.
What is the Law of Conservation of Mass
What number tells you the number of protons and electrons?
What is the atomic number
subatomic particle with a positive charge
What is a proton?
When the number of atoms is equal on each side we say that the equation is this.
What is balanced?
What are 3 examples of substances that are acids?
answers vary
These are the numbers you can change when balancing a chemical equation
What are coefficients?
How do you figure out the number of neutrons?
subtract protons from mass
Subtract the atomic number from the atomic mass
How many electrons fit on the first energy level?
What is a 2
chemical reaction that releases energy
What is an exothermic reaction?
Bases release what when dissolved in water?
Hyrdoxide ions (OH-)
Neutralization is a reaction between which two types of substances
Acids and Bases
What element's symbol is K?
Potassium
How many electrons fit on the third energy level?
What is 18
Can be used to describe either an element or a compound
What is a substance?
List pH levels in order of increasing H+ concentrations
14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
The neutralization of acids and bases produce which two substances
water and salt
This is the lightest element on the periodic table
Hydrogen
H2O is formed from this type of bond
What is covalent
Tells you the number of atoms in a molecule
What is a subscript
2 characteristics of bases
Slippery feel, bitter taste, pH higher than 7
The only metal that is liquid at room temperature
Mercury
Group 18 on the periodic table
Noble gases
An atom with the same number of protons but different number of neutrons.
What is an isotope