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WorksheetsStructure of Matter Unit Test
Total questions: 15
Worksheet time: 3hrs 30mins
Which of the following best explains the relationship between molecules and atoms?
Atoms are molecules that have a charge.
Molecules are made up of two or more atoms.
Atoms have smaller parts, called molecules
Molecules are atoms that have no mass.
Which of the following is true about how hydrogen and oxygen can combine to form molecules?
Hydrogen and oxygen can combine in many ways to form different molecules.
When oxygen combines with hydrogen to make a molecule, water will always be produced.
Two atoms of hydrogen are always required to bond with two atoms of oxygen.
Molecules composed of hydrogen and oxygen must have at least four atoms.
Graphite is a soft, dark material often used as a lubricant. Diamond is often a clear, hard crystal. Look at the image of the molecular structure of each substance. Explain how diamonds and graphite can both be made of pure carbon yet still be so different.
How many atoms are needed to form a molecule?
at least 7 atoms are needed to make a molecule
at least 4 atoms are needed to make a molecule
only 1 atom is needed to make a molecule
at least 2 atoms are needed to make a molecule
The following model was used to show a molecule of methane, or CH4. How many carbon and hydrogen atoms are there in the molecule?
Which of the following describes the configuration of what Layer 4 might look like in the sodium chloride crystal structure?
It will be identical in all of its characteristics to Layer 1.
It will contain 4 atoms of chlorine and 5 atoms of sodium.
It will have chlorine atoms in all four of its corners.
It will have sodium that are bonded only to other sodium atoms.
A subscript can be found where in a chemical formula?
Subscripts are found at the beginning of each chemical formula
Subscripts are found on the bottom right, next to each chemical symbol in the formula
Subscripts are found on the bottom left, next to each chemical symbol in the formula
Subscripts float above each symbol in the chemical formula
Methane (CH4) combines with oxygen gas (O2) to form carbon dioxide (CO2) and water (H2O). Describe the number and type of atoms for each molecule listed.
Describe how elements are different from atoms.
Solid matter that has atoms arranged in an ordered pattern.
Matter
Molecule
Atom
Crystal
Fill in the blank. A pure substance is a (a) substance, that can either be an element or a simple compound like water.
Describe the two different types of solids we have been talking about in this unit. HINT: think about the two ways a solids atoms might arrange themselves.
Anything with both volume and mass
Matter
Molecule
Atom
Crystal
Fill in the blank. A (a) has a definite volume and shape. The particles in this state of matter are highly attracted to each other causing the matter to keep its shape.
The basic building block of matter; made of electron(s), proton(s), and neutron(s)
Matter
Molecule
Atom
Crystal
