Exam 1: Understanding Our World With Chemistry

Nickel is represented by what atomic symbol?

What can elements form when they react with other substances?

What are the atomic symbols that correspond to gallium, germanium, and argon?

Which of the following is made from only one element?

How are oils and grease removed from used household or restaurant water?

Which atomic symbols correspond to hydrogen, mercury, and helium, in that order?

Sugar in iced tea is an example of what?

What name corresponds to the elemental symbol W?

The atomic symbol for antimony is what?

Which of the following atomic symbols represent calcium, chromium, and carbon?

Forensic science tries to provide a scientifically sound explanation of past events.

What was determined to be in the water near Boulder, Colorado that was feminizing fish populations?

The smallest unit of an element is an atom.

Write the formula for sodium chloride, which has 1 atom of sodium and 1 of chlorine.

Calcium chloride is sometimes used in the winter to melt snow on roads - what is the formula of his compound, if it contains one atom of calcium and two of chlorine?

What element is designated with the atomic symbol S?

What are the atomic symbols for chromium, krypton, and cobalt?

Why is oxygen added to water during wastewater treatment?

How many naturally occurring elements are on the periodic table?

What is the proper formula for magnesium chloride, which has 1 atom of magnesium and 2 of chlorine?