Card Set Information
How do you find the average speed.
average speed (in m/s) = total distance (in m) over total time (in s)
What makes an atom stable?
Elements with the exact number of electrons to fill their outermost energy level are stable, or unreactive.
What is needed to break bonds in a chemical reaction?
The rearrangement of atoms.
What makes a balanced chemical equation?
What is a homogenous mixture?
two or more substances that are evenly mized on the atomic level, but are not bonded together
Do strong acids have lower pH?
What is a neutral solution?
What is a pH of antacids?
Who discovered the orbits of the planets that move around the Sun?
How is matter classified?
Nonmetals are _____ _____ _____ _____?
A solution of 13 on the pH scale is _____.
What is elastic force?
force exerted by a material when it is stretched or compressed
What is a polymer and how would it look if drawn as a chemical equation?
a covalent compound made up of many, small, repeating units linked together in a chain
What is an AU?
an astronomical unit is the average distance from Earth to the Sun
One AU equals 149,600,000 km.
Mercury is _____ planet from the Sun.
Understand the phases of the moon.
What type of star is the Sun?
What is an aqueous solution?