Joey is conducting an experiment in which he measures how far a rubber ball flies when launched at different angles. Which of the following lab tools will allow Joey to record his results?
A.
a lab journal
B.
a meter stick
C.
a spring scale
D.
a stopwatch

Chemistry worksheet - i am not sure what they are asking for exactly?

Fossil fuels are organic compounds that are made from

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?