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Chemical Context of Life
Subatomic particle properties
Chemical Bonds
Water Properties
H2O
100
atoms
What is smallest unit of matter that retains the properties of an element?
100
Mass Number
What is # neutrons + # protons?
100
Molecule
What is 2 or more atoms held together by a covalent bond?
100
h2O
What is 2 H atoms joined to 1 O by single polar covalent bonds?
100
solution
What is a liquid that is completely homogeneous mixture of 2 or more substances ?
200
matter
What is Anything that takes up space and has mass?
200
Energy
What is the capacity to cause change?
200
single covalent bond
What is a hydrogen molecule- that shares 1 electron?
200
Polar Molecule
What is called when opposite ends of the molecule have opposite charges?
200
Ionic compound-
What is called when each individual atom has a charge?
300
hydrogen, oxygen, carbon and nitrogen
What four elements make up 96% of all living matter?
300
Potential energy
What is energy matter possessed due to location or structure?
300
Bonding capacity
What is number of covalent bonds the atom can form?
300
cohesion
What binds a substance together?
300
Hydrophilic
What is any substance with attraction to water (charges)?
400
compound
What is a Substance consisting of 2 or more different elements combined in a fixed ratio?
400
energy level
What is the potential energy electrons possess?
400
nonpolar covalent bonds
what are electrons that are shared equally?
400
calorie
what is amount of heat it takes to raise the temp of 1 g of water by 1 C?
400
Molarity
What is number of moles of solute per liter (L) of solution?
500
chemical reactions
What is Molecules making & breaking bonds?
500
Full valence shells
What kind of shells are stable, unreactive, inert?
500
Electronegativity
What is an attraction of an atom for the electrons in a covalent bond?
500
specific heat
What is the amount of heat that must be absorbed or lost for 1 g of that substance to change its temp by 1 C?
500
battery acid, stomach juices, vinegar, soda, wine etc
What is an example of 1-5 on the pH scale?