Flashcards in Atoms & Water Deck (58):
This is the study of matter.
We study chemistry in biology because...
All living things are made of matter!
This is anything that has mass and occupies space.
This is the simplest particle of matter that still retains all the properties of that substance.
This is a substance that cannot be broken down into anything simpler and contains only one type of atom.
This particle is negatively charged, very small, moves fast, and is found in orbitals ( based on energy level)around the nucleus.
This particle has no charge, contributes to the mass of an atom, and is found in the nucleus.
This particle has a positive charge, determines the atomic number, and is found in the nucleus.
This is an atom with an different number of neutrons.
When two or more elements are combined in fixed proportions.
Compounds are held together with:
Compounds will have _________ properties from the elements that compose them.
This type of chemical bond shares electrons forming molecules.
This type of bond transfers electron in a "give & take" fashion, making ions.
Ions are atoms with a:
This is the ability to do work.
Chemical energy in biology is called
Mechanical energy in biology is
Motion...muscles at work!
Electrical energy in biology is:
Neurology (nerve cells)
Thermal energy in biology is:
This state of matter has low energy, definite shape, and definite volume.
This state of matter has high energy, is free to move, so there is really no definite shape or volume.
This state of matter has moderate energy, has a definite volume, but will take the shape of its container.
This kind of reaction absorbs/takes in energy.
This is the process of changing one or more substances into one or more different substances.
This type of reaction releases/gives off energy.
This is the amount of energy needed to start a chemical reaction.
This is a stimulus that will lower the activation energy needed for a reaction.
What are the two parts of a Redox reaction?
Oxidation and reduction
This is the loss of an electron
This is the gain of an electron
Water is called a polar molecule because of its:
Uneven distribution of electrons
Because water is polar it has a:
Charge. O side is - and H side is +
Water forms this kind of bond due to the slight + attraction to something with a slight -.
This is the property of water sticking to other water
This is the property of water sticking to other substances/surfaces
Cohesion gives water __________, which allows some things to walk on water...also makes belly flops hurt
Adhesion makes water extremely sticky, this is apparent in the property of __________, where water moves upward against gravity.
Capillarity or Capillary Action
Temperature regulation is important to living things because
Water won't change temperature quickly
This is water's ability to absorb large quantities of heat.
Temperature regulation due to high specific heat.
When forming a solid, water is weird...it will...
Ice is less dense than water. This helps living things because ice can _______ in water.
Water is able to form many ________, due to its ability to combine with many other substances.
This does the dissolving
This gets dissolved
This is when there is less solute than solvent
This is when the solvent has dissolved all the solute, it's balanced
This is when there is way too much solute
Water can __________, making H+ and OH-
OH- is called the
H+ is called the
Hydroium ion (Hydrogen ion)
This is a substance that forms H+ ions in solution
This is a substance that forms OH- ions in solution
This measures the concentration of ions in a solution