Practice Test

Question 1

What can be known about all four polymers, despite their differences?

Revolt · Accepted Answer

They are made of repeating subunits.

Question 2

How many valence electrons are in an atom of fluorine?

Revolt · Accepted Answer

seven

Question 3

Which diagram shows how the covalent bonds most likely form in a formaldehyde molecule?

Revolt · Accepted Answer

Image with description C connected above and below to H's by 1 line each. C also connected by two lines to O, which has 2 dots each above and below.

Question 4

Which term best describes all atoms in ionic bonds?

Revolt · Accepted Answer

stable

Question 5

Eugene works at a carpet factory. Which natural polymer does he most likely work with to make the carpets?

Revolt · Accepted Answer

wool

Question 6

Which element is least likely to form chemical bonds?

Revolt · Accepted Answer

helium He

Question 7

Which shows two structures that are made mostly of metal?

Revolt · Accepted Answer

Image with description An image of a car. An image of a bridge made up of metal and cables.

Question 8

How many atoms of each element are in the chemical formula NH sub 4 NO sub 3 ?

Revolt · Accepted Answer

2 nitrogen, 4 hydrogen, and 3 oxygen

Question 9

Which is the only element in group 1 on the periodic table that forms covalent bonds?

Revolt · Accepted Answer

hydrogen

Question 10

What causes an ionic bond to form between sodium and chlorine?

Revolt · Accepted Answer

Sodium atoms donate electrons.

Practice Test Answers