Part 3 Flashcards
Electrons shared equally between atoms produce _______ molecules.
nonpolar molecules
Unequal sharing of electrons produces _______ molecules.
polar
What type of bond is the weakest bond present in the human body?
hydrogen bonding
Draw out how hydrogen bonding looks like
________ are synthesis reactions that always involve bond formation.
Combination Reactions
A + B → AB
What type of reaction happens when molecules are broken down into smaller molecules?
decomposition reactions
AB → A + B
What type of reaction occurs when bonds are both made and broken?
Exchange Reactions
AB + C → AC + B
Reactants losing electrons are electron ______ and are ______.
Reactants losing electrons are electron donors and are oxidized.
Reactants taking up electrons are electron _______ and become _______.
Reactants taking up electrons are electron acceptors and become reduced.
What are reactions that release energy (feel heat) called?
exergonic reactions
What are reactions whose products contain more potential energy than did its reactants?
endergonic reactions
Are all chemical reactions theoretically reversible?
yes
A + B → AB
AB → A + B
If neither a forward nor reverse reaction is dominant, _________ is reached.
If neither a forward nor reverse reaction is dominant, chemical equilibrium is reached.
What are the five properties of water?
- ) High heat capacity - absorbs and releases large amounts of heat before changing temperature.
- ) High heat of vaporization - changing from a liquid to a gas requires large amounts of heat.
- ) Polar solvent properties - dissolves ionic substances, forms hydration layers around large charged molecules, and serves as the body’s major transport medium.
- ) Reactivity - is an important part of hydrolisis and dehydration synthesis reactions.
- ) Cushioning - resilient cushion around certain body organs.
