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Chemical Equations and Reactions
States of Matter
Periodic Table and Trends
Thermochemistry
Chemical Formulas and Compounds
100
It is made up of two or more atoms of the same element.
What is a molecule?
100
There are __ states of matter.
What is 4?
100
The vertical columns on a periodic table is known as this.
What are groups?
100
It is concerned with the heat changes that occur during chemical reactions.
What is thermochemistry?
100
The rule that states that atoms will always form a compound in such a way to get a full outer shell.
What is the octet rule?
200
A substance that speeds up a reaction without being used up by a reaction.
What is a catalyst?
200
According to the kinetic theory all collisions are perfectly ________.
What is elastic?
200
On the periodic table there are more of these than nonmetals.
What is metals?
200
In energy transformations heat is represented by this letter.
What is q?
200
A molecule is the ________ unit of a substance.
What is smallest?
300
These are the coeffecient that correctly balance the equation: H2 + O2 --> H2O
What is 2, 1, 2?
300
_____________ is the conversion of a liquid to a gas or vapor.
What is vaporization?
300
When going from left to right on the periodic table the ______ size decreases.
What is atomic/ionic?
300
In thermochemistry ____ is the flow of energy.
What is heat?
300
When writing a binary compound the _____ element name doesn't change while the second element name has it's ending changed.
What is first?
400
In evaporation, water turns to gas without this happening.
What is boiling?
400
This group has the lowest electronegativity on the periodic table.
What is the alkaline metals?
400
The heat that is lost when one mole of a liquid solidifies at a constant temperature is this.
What is heat of solidification?
400
When drawing a Lewis structure which one of these elements never go in the middle? Hydrogen, Iron, Carbon.
What is Hydrogen?
500
In these types of solids the atoms, molecules, or ions that make up a substance are arranged in a three-dimensional pattern.
What is a crystalline solid?
500
Elements on this size of the table are most likely to form covalent bonds.
What is the right side?
500
the standard heat of formation of a compound is the change in this.
What is enthalpy?
500
A compound that has the general formula of MX3 usually has this shape.
What is trigonal planar?