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Chemistry of life

QuestionAnswer
smallest unit of matter atom
A substance made only of one type of atom element
The 4 main elements of life carbon, nitrogen, hydrogen, oxygen
other elements present in life phosphorus, sulfur, potassium
_____ makes a substance organic carbon
What atomic particle determines how it will bond/ react valence electrons
A substance made up of atoms of different elements compounds
charges that are distributed evenly in the molecule = a non-polar covalent bond
charges that are distributed unevenly in the molecule= a polar covalent bond
water is _____ oil is _____ polar, non-polar
rule _____ dissolves _____ like, like
if an atom gains an electron its charge becomes more ______ negative
if an atom loses an electron it becomes more positive
one atom become + another becomes - this equals an _____ ______ ionic bond
negative and positives form ______ _____ hydrogen bonds
Hydrogen bonds form between ____ molecules water
Them amount of energy it takes to heat a substance by 1 degree c is its specific heat
an attraction between like/ similar substances cohesion
an attraction between different substances adhesion
_______ _______ helps water go up plant roots, against gravity capillary action
Uneven bonding makes the surface even stronger = surface tension
iconic compounds and polar substances readily dissolve in _____ water
Water is called the ________ _______ Universal solvent
acids and bases are read on a pH scale of 1-14
acids = a pH less than _ 7
bases = a pH greater than _ 7
a pH of 7 = neutral
too much co2 in the blood and it becomes acidic= acidosis
working out produces carbonic acid
Building blocks of ___ contain one of 4 nitrogen bases A,T,G,C DNA
What keeps the pH of substances in the body from fluctuating Buffers
Created by: 100000795611630
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