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WorksheetsLesson 4 - Molecular Structures
Total questions: 30
Worksheet time: 2hrs 7mins
Which of these is the best conductor of electricity?
Glass rod
Cotton string
Plastic tubing
Copper penny
Define the term soluble.
Can dissolve in water
Cannot dissolve in water
Partially dissolves in water
Ionic bonding is between a
nonmetal ( - ) and nonmetal ( - )
metal ( + ) and nonmetal ( - )
metal ( + ) and metal ( + )
Depends on the situation
Covalent bonding is between a
nonmetal and nonmetal
metal and nonmetal
metal and metal
It depends on the situation
Which of these is a property of metals because of their extended structure?
It's malleable
It can't conduct electricity
They are used in food
It's very brittle
Because of their extended structures (repeating atomic pattern) at room temperature metals are ____________.
plasma
gases
liquid
solid
Water and oil are placed in the same vessel and stirred. The reason that oil and water will not mix is because -
water is nonpolar and oil is polar
both water and oil are nonpolar
both water and oil are polar
water is polar and oil is nonpolar
What is the example in the image?
The electrons in an atom
A diatomic structure
An extended structure (crystal lattice)
A water molecule
extended structure
a type of extended structure that is made of many smaller, repeating subunits in a chain; the repeating subunit is a unique molecule
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 up
a structure whose subunits occur in a constant ratio and are arranged in a repeating pattern; the subunit can be individual atoms or a molecule
a group of two or more atoms that are held together by chemical bonds; a molecule has a unique composition and structure
Ionic compounds such as salt, sodium chloride, have high melting points because of the attraction between all of the atoms in the compound.
True
False
