Chem Quests 1-9
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Qualitative or Quantitative? The building is really tall. | Qualitative
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| Qualitative or Quantitative? It takes a long time for me to ride my bike to the store. | Qualitative
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| Qualitative or Quantitative? The river is 31.5 m deep. | Quantitative
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| Qualitative or Quantitative? I live really far away. | Qualitative
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| Qualitative or Quantitative? The cheese costs $4.25 per pound. | Quantitative
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| Qualitative or Quantitative? It is 75 degrees outside today. | Quantitative
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| What quantity is a meter (m)? | length
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| What quantity is a kilogram (kg)? | Mass
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| What quantity is a second (s)? | Time
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| What quantity is Kelvin (K)? | temperature
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| What quantity is Liter (L)? | Volume
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| What quantity is a mole (mol)? | Amount of substance
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| Mega (M) means.... | million
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| Kilo (k) means... | thousand
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| Deci (d) means... | tenth
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| Centi (c) means... | hundredth
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| Milli (m) means... | thousandth
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| Micro (ยต) | millionth
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| Nano (n) | billionth
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| Pico (p) | trillionth
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| One cm is equal to a) 0.001m b) 0.01m c) 1.0 m | 0.01m because one cm is "one hundredth of a meter" and 0l01 m is the expression for "one hundredth of a meter".
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| When you multiply two numbers in scientific notation, you must _____ their exponents. | add
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| When you divide two numbers, you must ________ the denominator's exponent from the numerator's exponent. | subtract
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| Scientific notation can be a nice way of getting rid of the unnecessary _____in a number. | zeroes
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| Zeroes at the beginning of a number are _______ significant. | never
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| Zeros that are between two nonzero numbers are ______ significant | always
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| 21,500 meters = ____kilometers | 21.5 kilometers
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| 0.00582 meters = ____millimeters | 5.82 millimeters
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| Zeros at the end of a number are not significant unless there is a _______ ______ in the number. | decimal point
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| How do you round a number? 1)Count the number of ______ figures in each number. | significant
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| How do you round a number? (continued) 2) Round your answer to the _____number of significant figures. | least
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| A chemical change is any alteration that changes the _____of matter. | identity
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| A physical change is any alteration that does not ____the identity of the matter. | change
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| A _______change is any alteration that does not change the identity of the matter. | physical
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| A _______change is any alteration that changes the identity of the matter | chemical
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| Burning a paper is a _________change. | chemical
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| Shredding paper is a ________ change. | physical
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| dissolving salt in water is a ______change. | physical (the salt and water are still there)
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| Passing electricity through water, changing it into hydrogen and oxygen is a _____change. | chemical
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| Is it an element or a compound? sodium (Na) | element
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| Is it an element or a compound? Water (h 20) | compound
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| Is it an element or a compound? Hydrogen Peroxide (H2 02) | compound
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| Is it an element or a compound? methane (C H4) | compound
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| Is it an element or a compound? carbon (c) | element
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| Is it an element or a compound? Oxygen (0) | element
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| Is it an element or a compound? sodium chloride (NaCl) | compound
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| Is it an element or a compound? carbon dioxide (C 02) | compound
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| Is it an element or a compound? chlorine (Cl) | element
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| Is it a pure substance or a mixture? sand | mixture
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| Is it a pure substance or a mixture? Kool-aid | mixture
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| Is it a pure substance or a mixture? salt | pure substance
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| Is it a pure substance or a mixture? Hydrogen and Oxygen | mixture
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| Is it a pure substance or a mixture? water | pure substance
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| Is it a pure substance or a mixture? aluminum | pure substance
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| Is it a pure substance or a mixture? carbon dioxide | pure substance
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| Is it a pure substance or a mixture? sodium and chlorine | mixture
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| Is it a pure substance or a mixture? salt water and sand | Mixture
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| Is it a pure substance or a mixture? hydrogen | pure substance
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| An element is... | one single thing
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| a compound is... | several different elements
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| a mixture is... | several different elements mixed together
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| a pure substance is... | the substance is made up of only one kind of particles, ie hydrogen or oxygen
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
margaretawarren
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