Using the pH table below, which items is the most acidic?

Sugar dissolves when stirred into coffee. The coffee is the , the sugar is the , and the sweetened coffee is the .

Identify two components of the biosphere in the image below and two components that WOULD NOT be part of the biosphere. You must state things that are in the image, you cannot speculate that there are other hidden things.

What pH is considered neutral?

Which type of chemical reaction is depicted below?

Label the following as either a theory or law. “Energy can neither be created nor destroyed – only converted from one form of energy to another.”

You are interested in studying the safety and effectiveness of a new drug for diabetes in humans.  You begin by conducting a controlled experiment using mice and then a group of 100 people in a clinical trial. In this case, the mice and the study group can be considered what part of the experiment design?

If a strand of DNA has the nitrogen base sequence, GCTAGATGCG, what will be the sequence of the complementary strand?

An atom has 20 protons. What atom is being described?    

Isotopes of an element have the same number of and different numbers of .