Chemistry of Life Text
1. Match Column A with Column B (10 points)
Column A
Column B
1. Atoms
a. regions around the nucleus which a given electron is
likely to be found
2. Electron Shell
b. zero-charged subatomic particle
3. Protons
C. combination of two or more atoms held together by
chemical bonds
4. Molecule
d. unique substances that cannot be broken down into
simpler substances
5. Electron
e. the basic building block of matter-living or non living
6. Neutron
f. the sum of protons and neutrons in the nucleus of an
atom
7. Elements
g. combination of two or more elements
8. Atomic Number
h. positively charged subatomic particle
9. Atomic Mass
i. the number of protons and electrons in an atom
10. Compound
J. negatively charged subatomic particle
Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3