Exam (elaborations)
IVY TECH APHY 101 MIDTERM QUESTIONS AND ANSWERS
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IVY TECH APHY 101 MIDTERM QUESTIONS AND ANSWERS
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1-33 of 33What is the pH scale? What ions are involved in the pH scale?
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A unit of measurement that indicated how many H+ ions are in a solution
hydrogen ions
Atom?
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The smallest particle that exhibits the chemical properties of an element
Define nucleus.
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Nucleus-it carries DNA it is responsible for reproduction and making
protein; it also has two layers
What is a reactant? A Product?
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Reactant-A substance that takes part in and undergoes change during a
reaction
Product-The substances that result from this recombination of atoms
What are covalent, ionic and hydrogen bonds? What are the differences among the
three?
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Covalent- when atoms share electrons
Ionic-when cations and anions bind together
hydrogen-A weak attraction formed when a hydrogen atom of one
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