Chemistry

 

 

Chemistry

 

1.) Which statement describes a step in the formation of an ionic bond?

An attraction occurs between two ions that have the same charge.
A metal atom forms a cation, and a nonmetal atom forms an anion.
A more electronegative atom transfers electrons to a less electronegative atom.
A metal pulls electrons from another metal and produces a force of attraction.

2.) Which property best indicates that a compound contains an ionic bond?
It is insoluble in water.
It can be easily flattened.
It has a low boiling point.
It conducts electricity when molten.

3.) Which statement correctly describes the phosphate ion, mc031-1.jpg?
It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion.
It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom.
It is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion.
It is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

4.) Which pair of elements will form an ionic bond?
N and O
K and Br
C and Cl
Fe and Ni

5.) Which statement is true about ionic compounds?
They are made up of many large molecules that are bonded together.
They are made up of atoms of only one type of element.
They are made up of particles that are arranged in a repeating pattern.
They are made up of a random ratio of elements that are bonded together.
6.) The diagram below shows the atoms involved in forming table salt.

 

 

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