CHEM 1007 Ch. 1 Quiz

Which of the following systems of units is most often used for scientific measurements?

select all of the following that are example(s) of a property.

Which of the following is considered an intensive property? More than one answer is correct.

_____ is the smallest piece of an element that retains the chemical properties of that element.

How many elements are there currently?

“The observation that the elemental composition of a compound is always the same” is:

What are the smallest building blocks of matter?

What is a key component of chemical changes?

What is considered a key component of physical changes?

What kind of reaction is this: H2(g) + 1/2 O2(g) --> H2O(l) + heat

What kind of mixture is gasoline?

Which of the following is an example of a pure substance?

Sublimation is:

Which of the following is the SI unit for mass?

Which of the following does the properties of matter NOT depend on?

What is chemistry?

Which of the following is NOT considered a pure substance?

In the metric and SI systems of units, a prefix attached to any unit increases or decreases its size by some factor of:

What is one of the products of an exothermic reaction?

Filtration is used to separate ________ mixtures.

Which of the following forms of oxygen is most common in chemical reactions?

Which prefix is matched correctly with its meaning?

Which of the following has no fixed volume or shape?

What important aspect are properties used for?

Atoms generally combine to form:

What is the difference between elements and compounds?

Which of the following is a type of physical change?

True or false: evaporation is a change between 2 states of matter.

Which of the following would NOT be considered matter?

Which of the following means a property associated with numbers?