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[DOC File]Chapter 01 Lecture Notes - Math, Chemistry, Physics
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scientific notationmethod of writing numbers in the form A ( 10n, where A is a number with a single nonzero digit to the left of the decimal point, and n is an integer, or whole number (1.5) exact numbernumber that arises when we count items or sometimes when we define a unit (1.5)
measured vs exact chem

[DOC File]Honors Chemistry - Council Rock School District
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The number of moles can also be used to calculate the number of particles – atoms or molecules. The number of particles can be determined from the mass of a compound or element. 4.5 Because matter cannot be created or destroyed, the total mass of the products is equal to the total mass of the reactants in a chemical reaction.
difference between exact and measured

[DOC File]Chemistry SOL Review Packet - Henry County Public Schools
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The exact number of glucose molecules attached together to form polysaccharides is not known. Starch and cellulose are the two most common polysaccharides in biology. They consist of long chains of glucose molecules joined together. 18. What must be removed from some of the glucose molecules in order to join and form a polysaccharide ...
example of an exact number

[DOC File]Significant Figures Practice Worksheet
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) to a clean, dry large test tube and record the exact number of drops you added. Add one drop of phenolphthalein indicator to the test tube. The indicator should be colorless in the acid solution. Use a similar dropper to add 0.08 M NaOH solution to the same test tube, counting the drops as you go, and swirling the test tube to mix the solutions.
measured and exact numbers

[DOC File]Chemistry 141 - Chemical Principles I
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(the PT is arranged by atomic number) b. Atomic number controls the _____. (the identity of the atom is based on the . number of protons in the atom) 2. _____ : the sum of the protons and neutrons in the nucleus. This number is rounded from atomic mass due to the fact that there are isotopes. It is _____ on the Periodic Table. 3.
exact numbers vs inexact

[DOC File]CHAPTER 1
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RULE-3: Any number that is counted is an EXACT number and has UNLIMITED significant digits. How many significant figures do the following numbers have? 1) 1234 ____
exact and non exact numbers

Definition of Exact numbers in Chemistry.
An exact number is a number that is determined by counting or by definition. For example, the number of students in a particular class section can be determined exactly by counting them. We can determine the exact number of nuts or bolts in a bag, or the number of apples in a bowl by counting.
identify the exact numbers

What is an exact number chemistry