what pH range indicates that a substance is alkaline?
7.1 to 14
200
The name of the electrons located in the outermost shell of an atom (all alkali metals would have 1)
valence
200
Eureka! His principle shows that the volume of water displaced by a submerged item is equal to the volume of the item itself... (I wonder if his principal taught him that)
Archimedes
200
Convert 5.75 Kg to g
5750g
300
Give an example of something that is NOT considered matter.
light and sound (forms of energy)
300
name 3 types of chemical reactions
SD, DD, Syn, Dec, Comb
300
Give both the relative charge and mass of an electron is?
-1 and 0
300
Don't lose your head! This man is considered to be the "father of modern chemistry"
Lavoisier
300
A toy has a density of 10g/mL and a volume of 10mL. What is the mass of the toy?
100g
400
A solution contains particles that settle to the bottom of the contain when left alone. what specific class of solution has been made?
suspension
400
baking soda has a solubility of 10g in 100mL of water. Is a 50mL glass with 6g of baking soda in it: saturated, unsaturated, or supersaturated?
supersaturated
400
what happens to atoms involved in chemical reactions?
they are rearranged
400
His "gold-foil" experiment led to the discovery of protons and a dense central nucleus in the atom.
Rutherford
400
the number 101.01 has how many significant figures?
5
500
Ice changes to a liquid at which celsius temperature? for double points, what is the name of the phase change when ice goes directly into a gas?
0C, sublimation
500
What compound is made when Fe3+ is combined with O2-? For double points name the compound that is produced
Fe2O3 and Iron (III) oxide
500
Find Bromine on the PT. How many protons and neutrons does it have? (for double points, what family does it belong to?
35 protons, 45 neutrons, halogen
500
His cathode-ray experiment led to the discovery of the first subatomic particle. For double the points... what was the subatomic particle?
Thompson and electron
500
you have 5 mols of NaCl. what mass of NaCl do you have? double points if you can calculate the molarity in 2 liters of water.