Show:
Solutions and Solubility
Periodic Table
Physical and Chemical Changes
Chemical Reactions
Miscellaneous
100
It is present in the greatest amount in a solution.
What is a solvent?
100
The one that is not an element: Ne, K, CO, Fe
What is CO (carbon monoxide)?
100
Burning fuel is an example of this.
What is a chemical reaction?
100
In a chemical reaction the mass of the products is equal to this.
What is the mass of the reactants?
100
All matter is made up of this.
What are atoms?
200
More solute can easily be added to this type of solution.
What is an unsaturated solution?
200
Elements in the same group have similar ?
What are properties? (also: valence electrons or reactivity)
200
Making ice cubes is an example of this.
What is a physical change?
200
These subatomic particles are involved in chemical reactions.
What are valence electrons?
200
The part of the experiment that we compare our results to.
What is the experimental control?
300
The type of solution that is represented by the line on a solubility curve.
What is a saturated solution?
300
The elements that appear to the left of the zig-zag line on the periodic table. They are also the most numerous.
What are metals?
300
This is evidence that a chemical reaction occurred.
What is a new substance with different properties forms?
300
Two clear solutions are mixed and a white solid forms. What is this solid called?
What is a precipitate?
300
The line in H-H represents ?
What is a chemical bond? (or a covalent bond or shared electrons)
400
The relationship between temperature and the solubility of gases.
As temperature increases, solubility decreases.
400
The group number of the halogens.
What is Group 17?
400
This type of change occurs when water is evaporated from a salt water solution, leaving the salt behind.
What is a physical change?
400
When bubbles form after two liquids are mixed together, it means this has occurred.
What is a chemical reaction?
400
When two negatively charged plastic strips are placed near each other, this happens.
What is repel?
500
Three factors that make a solid solute dissolve faster are smaller particle size, stirring, and ?
What is higher temperature?
500
The type of element that is very important in the semi-conductor industry.
What are metalloids?
500
This is what happens to the atoms of the reactants during a chemical reaction.
What is rearranged to form the products?
500
The reason that chemical reactions go faster at higher temperatures.
What is molecules move faster and collide more?
500
The number of oxygen atoms in 6 MgO.
What is 6?