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Chapters 2 & 3
The Chemical Context of Life; BSC1010
Question | Answer |
---|---|
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 |