Periodic Table
Atoms/Molecules
Chemical Equations
Chemical Reactions
Element
100
How many groups are in the periodic table?
What is 18
100
What is the difference between an atom and a molecule?
The atom is the smallest particle of matter and molecules form when two or more atoms combine.
100
Complete the chemical equation. Use coefficients if necessary. HHHH + OO >___________________
2H2O
100
What is the definition of a chemical reaction?
When two substances mix together and a NEW substance forms such as gas and precipiate
100
What two substances create salt? Give the symbol and the name of the elements.
NaCl Sodium and chlorine
200
How many periods are in the periodic table?
What is 7
200
True or false (An element is the same thing as an atom.)
True
200
Complete the chemical equation. Use coefficients CCC + OOOOOO
3CO2
200
What is precipitate?
A new white solid that formed when calcium chloride and baking soda mixed together.
200
What two elements combine to form water? state the symbol and name of the elements.
H and O Hydrogen and Oxygen
300
How many shells does Carbon have? (Look at the periodic table to help you.)
What is 2 because it is in period 2 row.
300
What is a compound?
Two or more different elements combined
300
Complete the chemical equation. HCL + NaO3CH
NaCl + H2O + CO2
300
From the Fizz quiz lab, cup 1 created precipitate. What was the new substance created from the chemical reaction? State the scientific name for the new substance.
Calcium carbonate (Chalk)
300
What element is Ne? What period and group is Ne in the periodic table?
Neon period 2 Group 18
400
What information does the atomic number tell you? (name all 3 things)
What is the number of protons, neutrons, and electrons.
400
Is H2O a compound, molecule, element, and(or) atom? State all that applies to H2O.
What is a compound and molecule.
400
What is the chemical equation for carbon dioxide?
CO2
400
What is happening to the atoms when a chemical reaction is taking place? Give an example using atoms/molecules
Bonds between atoms are broken and create new molecules. The new molecule that formed is the chemical reaction we observe during the experiment. Example: Carbon and Oxygen react to create carbon dioxide (CO2)
400
What is the symbol for Pb? What is the period and group of this element?
Lead Period 6 Group 14
500
Amy states that you can figure out the atomic number by just looking at the element’s atomic mass. Explain how this is possible.
If you divide the atomic mass by 2, you will get the atomic number. For an example, if the atomic mass is 20.433, the atomic number will be 10.
500
Is O2 a compound, elements, atom, or(and) molecule.
What is a element and molecule.
500
What is the chemical equation for carbonate/chalk?
CaCO3
500
What three things did you observe when you mixed baking soda and calcium chloride? How did you know a chemical reaction has occurred?
Precipitate Gas: Fizzing/bubbling salt crystals
500
What is element has the symbol Au? Period and group?
Gold Period 6 Group 11
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