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Water Chemical reactions Mixed Q’s #1 Mixed Q’s #2 10 Point 10 Point Elements, Atoms, Molecules Water Chemical reactions Mixed Q’s #1 Mixed Q’s #2 10 Point 10 Point 10 Point 10 Point 10 Point 20 Points 20 Points 20 Points 20 Points 20 Points 30 Points 30 Points 30 Points 30 Points 30 Points 40 Points 40 Points 40 Points 40 Points 40 Points 50 Points 50 Points 50 Points 50 Points 50 Points
Substances that can’t be broken down by ordinary chemical means
What is an element?
Magnesium, chlorine, and phosphorus are needed in minute quantities in your body
What is a trace element?
Carbon, Oxygen, Nitrogen and Hydrogen
What elements make up 96% of the human body (and living organisms)
used for medical diagnosis atoms that decay spontaneously and can be used for medical diagnosis
What are radioactive isotopes?
unequal electron sharing bonds that have unequal electron sharing and create important biological compounds
What are polar covalent bonds?
The universal solvent
What is water?
The attraction of water molecules to the tissue walls of a plant during capillary action
What is adhesion?
The tendency of water molecules to stick together
What is cohesion?
electronegative atom in A hydrogen atom in one molecule can bond to an electronegative atom in another molecule
What is a hydrogen bond?
These two oxide molecules that cause acid precipitation
What are sulfur oxides and nitrogen oxides?
Atoms that gain or lose electrons
What are ions?
What are nonpolar covalent bonds?
A molecule that shares electrons equally
A chemical reaction shows the ______ to the left of the arrow and the _____ to the right of the arrow.
What are Reactants / products?
Weak acids or bases that help resist drastic changes in pH
What are buffers?
Chemical compounds that add H+ to a solution
What are acids?
The number of protons in the nucleus
What is the atomic number?
The outermost electrons involved in reactivity
What are valence electrons?
A substance containing 2 or more elements in a fixed ratio
What is a compound?
The atom that has an atomic number 12, mass number 24, and has 10 electrons, 12 protons, and 12 neutrons
What is the magnesium 2+ ?
its ability to absorb a high amount of heat without changing its The property of water that characterizes its ability to absorb a high amount of heat without changing its temperature drastically
What high specific Heat?
The number of protons and neutrons in the nucleus
What is the atomic mass number?
The protons, neutrons and electrons of an atom
What are subatomic particles?
Changing this would change the atom into a different element
What are protons?
A can of cola consists of sugar dissolved in water A can of cola consists of sugar dissolved in water. The sugar is the _______, the water is the ________
What is a solute and a solvent?
Lack of this trace element causes goiters
What is iodine?
Final Jeopardy Make your wager
A radioactive isotope used in the treatment of thyroid cancer
What is Iodine – 131?