Periodic Table
What number do you use to find the number of protons?
atomic number
What are the 3 main states of matter?
Solid, liquid, gas
What type of reaction results in fire or burning?
Combustion
What is the element called with the symbol "C"?
Carbon
What physical property do you get when you divide mass by volume?
Density = Mass/Volume (Mass over volume)
How many periods are shown on the periodic table?
7
What is the lightest element on the periodic table?
hydrogen
Which of the following is not a type of chemical reaction:
combustion
synthesis
decomposition
decombustion
replacement
displacement
decombustion
What is the element with symbol "Au"
Gold
What is one way to find the volume of an object?
Measure length x width x height
Overflow
Displacement with water
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True or False: The following equation is balanced --
2 CH4 + 4 O2 → 2 CO2 + 4 H2O
True
The left side of an equation, shown here in italics, are called the _____________________.
2C3H8 + 7O2 → 6CO2 + 8H2O
reactants
What is the element with the symbol "K"?
Potassium
Boiling water -- physical or chemical change?
Physical change
What type of elements are the most abundant on the periodic table? Metals, Nonmetals, Metalloids, or gases
Metals
Ice would be in what state of matter?
Solid
The substances mixed to produce a chemical reaction are called
Reactants
What are the elements in Group 1 and 2 called ?
Reactive Metals
Color, shape, mass, and luster of a substance are examples of physical properties or chemical properties?
Physical properties
How many groups are on the periodic table?
18
What is it called when we measure how fast particles are moving?
temperature
CaOH, H2O, and C6H12O6 are examples of elements, compounds, or mixtures?
Compounds
Elements with the same number of protons but different number of neutrons
Isotope
Which of these is not a sign of a chemical reaction:
- chemical has changed size
- chemical has changed to a new odor
- chemical has changed to a completely different color
chemical has changed size
What are the elements in Group 18 called ?
Noble Gases
Name the scientist who first included the nucleus in its atomic model. Hint: last name starts with the letter "R".
Rutherford
2C4H10(g) +13O2(g) → 8CO2(g) +10H2O(g)
What type of reaction is shown above?
Combustion
Name all 3 subatomic particles.
Protons Neutrons Electrons
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How are ions formed? What are the changes that happed to the atom?
By losing or gaining electrons
For something to be considered matter, what are the two characteristics that need to be met?
Has mass and takes up space (volume)
A solution that cannot dissolve more solute is called _________. (Hint: it is also the same as something that is so wet it cannot get wetter)
Saturated
What are protons, neutrons, and electrons made of?
quarks
What is it called when a solid forms as the result of a chemical reaction between two liquids in a solution?
Precipitate