Show:
Experiments/Metrics
Properties of Matter
Sci Guys/ Comounds, Elements, and Mixtures
Periodic Table
Bonding/Reactions
100
Facts, figures, and other evidence learned through observation is called....
What is data.
100
Is density, color and hardness a physical or chemcial property of matter?
What is a physical property of matter.
100
TRUE/FALSE- A mixture is chemically combined
What is false
100
What is the name of group 2 on the periodic table?
What is the alkaline-earth metals.
100
What is an isotope?
What is an element that has the same number of protons but different number of neutrons or a different atomic mass.
200
In the title "The Effect of Different Colors of Lights on the Amount of Evaporation", what is the IV and the DV?
What is the IV= Different colors of lights DV= Amount of evaporation
200
When a substance changes from a solid to gas without passing through a liquid state, the change is described as....
What is sublimation.
200
The first person known to think that matter is made of atoms was...
What is Democritus.
200
Which group contains elements that are unreactive?
What is the nobel gases, or group 18.
200
What ending do you add to the end of the second element in an ionic compound?
What is -ide ending.
300
What is the SI unit for volume?
What is liters or cm3
300
In which state of matter would a substance have the most thermal energy?
What is gas
300
Bohr's atomic model placed the electrons...
What is in definte orbits around the nucleus.
300
Where are metals located in the periodic table?
What is to the left of the zigzag line.
300
A covalent bond occurs between a ______ and a ______.
What is nonmetal and a nonmetal.
400
Calculate the density of a cube that has a mass of 56 grams and a volume of 2 cm3.
What is 28 g/cm3.
400
Atom is to element as molecule is to
What is compound
400
All elements are composed of extremely small particles called...
What is atoms
400
Which group on the periodic table has 5 valence electrons?
What is the nitrogen group (group 15)
400
A reaction that releases energy in the form of heat is described as...
What is an exothermic reaction.
500
Convert 2,345 L into cL.
What is 234,500 cL
500
State the difference between a chemical and a physical change. Give an example of both.
What is a chemical change is when one or more substances change into entirely new substances with different properties. An example would be paper burning. A physical change is when matter changes from one form to another without a change in chemical properties. An example would be water evaporating into vapor.
500
Describe Rutherford's experiment.
What is Rutherford experimented with gold foil and discovered the nucleus of the atom.
500
Sodium metal can react with the nonmetal chlorine to form what kind of bond?
What is an ionic bond.