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WorksheetsSimple Molecules and Extended Structures
Total questions: 10
Worksheet time: 30mins
What is H2O ?
A chemical formula that shows atomic composition
A chemical equation that shows a reaction
A chemical symbol for the periodic table
A chemical number that shows the atomic mass
What is the chemical formula for caffeine (pictured)?
C4H2N10O8
CHN2O
CHNO
C8H10N4O2
What is the example in the image?
The electrons in an atom
A diatomic structure
An extended structure (crystal lattice)
A water molecule
What is the difference between a molecule and a compound?
One is radioactive.
Molecules are made of the same atoms, while compounds are made up of two or more different types of atoms.
They are both made of only a single atom.
One makes you up and the other makes the thing that make you up.
Why are oxygen molecules (O2) different than ozone molecules (O3) even though they are made up of the same atoms.
They have different structures.
They have different amounts of atoms.
They have different chemical formulas.
All of the above answers are correct.
How can you use the Periodic Table of Elements to determine single elements from compounds?
Look at the atomic numbers on the Periodic Table of Elements.
Look at the atomic mass.
Use the elements abbreviations to see if more than one element is represented in a compounds name. A compound has two or more different elements.
Look for chemical blocks.
Molecules are atoms "joined" together by...
chemical bonds/attractive forces.
sticks/circles/spheres.
super glue!
This is an example of a(n)...
simple molecule.
extended structure.
This is an example of a(n)...
simple molecule.
extended structure.
What is an extended structure?
A type of extended structure that is made of many smaller, atoms in a chain.
The types of elements that make up a substance, as well as the specific ratios of atoms of each kind of element that make it.
A structure whose subunits occur in a constant ratio and are arranged in a repeating pattern; the subunit can be individual atoms (like Carbon) or a molecule (like propane or butane).
A group of two or more atoms that are held together by chemical bonds.
