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Chapters 2 & 3

The Chemical Context of Life; BSC1010

This number equals the number of protons in an atom. Atomic Number
What does the law of conservation of mass state? Total mass of all reactants must equal the total mass of all the products.
Which of the properties of water listed in your notes are due to the polarity of the water molecule? All of the properties of water.
These bonds are formed when electrons are shared. Covalent Bonds
The charge for a neutron. Neutral - no charge
Another term for reactions which are biosynthetic in nature. Anabolic Reactions
The charge for a proton. Positive
The 2 types of particles found in the core of an atom. Protons and neutrons
Which type of biological reaction involves the uptake of water and ends up breaking down molecules? Hydrolytic Reactions
Is a solution with a pH of 9 considered an acid, base or neutral? Base
Diatomic nitrogen is held together by how many covalent bonds? triple covalent bond
Another term for reactions which are degradative in nature. catabolic reactions
Which type of biological reaction involves the release of water and ends up building molecules? Condensation reactions
This equals the number of protons + the number of neutrons in an atom. Atomic Weight
These chemical bonds are fomed when one atom gains an electron(s) and the other atom involved loses an electron(s). Ionic bonds
Hydrogen bonds are based upon this type of covalent bond (choose either polar or non-polar). Polar Covalent Bonds
What 3 particles make up an atom? Protons, Neutrons & Electrons
Give an example of a compound formed due to ionic bonding. NaCl
The charge found on an electron. Negative