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90 Cards in this Set
- Front
- Back
What is the difference b/t pure substances and Mixtures
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A mixture can be made up of 2 or more substances and do not have exact properties as their compositions can vary. Pure substances have fixed ratios. Mix can change it's state over a range of temps but pure substances will only change at fixed boiling points and melting points.
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What is the difference b/t elements and compounds?
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Elements can't be separated whereas compounds can be.
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What is the difference between homogenous and heterogenous mixtures?
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Homo. mixtures are uniformed through out. Ex: salt Heterogeneous is non composition such as soil and water.
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List the states of Solids, Liquids, and Gases
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Liquids have definite volume and but not shape. Gas have no shape nor volume. Solids have definite shape and volume
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What is the difference b/t chem and physical changes in a reaction.
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Chem reaction when the outcome has different compounds than when it start. Ex: Porpane Physical reaction the composition stays the same but the physical properties change. EX: Rubbing alcohol on the skin.
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Why is the decimal system important?
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The decimal point shows the relationship b/t measurements
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What is the relationship b/w liter and cm3 and ml and cm3
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1000ml=1 Liter
1cm3 = 1ml |
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How is Volume typically measured?
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mL
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What is the difference b/t exact numbers and non-exact numbers
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Exact numbers have no uncertainty 12 ft= 1 foot. Inexact numbers have a degree of uncertainty. Ex: All measurements
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1 mile = ___ Km
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1.609 Km
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1 lb= ___ g
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453.6 g
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1 kg = _____ lbs
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2.205 lbs
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1 0z =_____ g
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28.35g
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1 meter = _____ inches
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39.37
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1 gallon = _____ Liters
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3.785
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1 in =_________ cm
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2.54cm
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1 calorie = ________j
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4.148J
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Heat, electricity, and light are considered mass. T/F
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False
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How is gas typically measured?
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mL or L
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How is K calculated?
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C + 273
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What is the formula to calculate C into F
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C= 5/9 (F - 32)
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calculate F-C
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F= 9/5(C) + 32
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Formula for Density
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D= M/V
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Formula for Volume
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V= M/D
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Formula for Mass
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M= D*V
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Define Density.
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Is defined as its mass per volume unit.
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Specific Gravity is the same as what?
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Density
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What is boiling point for F?
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212F
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What is the freezing point in F?
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32F
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What is the boiling point of C
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100
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What is the Freezing Point in C?
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0
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What is the boiling point in K
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100 + 273= 373
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What is the freezing in K?
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273
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Normal body temp in K
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310
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What is the highest degree in K
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373
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What is the lowest temperature in K?
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0
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1 Calorie =________J
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4.148 J
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What is the formula for Specific Heat
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SH= m x g x ch in Temp
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Formula for Change in Temp
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CT = Amount of heat/ M x g
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Formula for Amount of Heat
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Amount of Heat = SH x M x Ch in Temp
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Is Bronze is mixture, compound or element?
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Mixture:
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Ag
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Silver
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Al
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Aluminum
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Ar
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Argon
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Au
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Gold
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Boron
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B
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Gold
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Au
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Cu
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Copper
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Ca
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Calcium
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Cl
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Clorine
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Ba
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Barium
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Be
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Beryllium
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Br
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Bromine
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platinum
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Pl
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Mercury
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Hg
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What does the chemical formula tell you?
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Gives you the elements involved and their ratio to each other.
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Explain Daltons Theory
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Matter is composed of atoms. In a chemical reaction atoms are combined, separated, or rearranged but NEVER changed into atoms of another element.
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What is the law of conservation?
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Matter can't be destroyed. A chemical reaction only changes the attachments of the atom and doesn't destroy the atom.
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What is the complete chemical symbol notation.
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As it appears on the P. Table
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What are the physical properties of alkaline metals
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Shinny, malleable, soft, colored when they burn
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List the properties of Halogens
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Are colored and are used for disinfectants.
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How does the first row of elements compare to the last row of elements.
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The first row of elements are extremely active whereas the noble gases are not.
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What is an alloy metal
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Metals that melt / dissolve into one another. Brass and Zn = Bronze
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List the recurring properties of Halogens
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They are colored and react to Na and have low melting points and boiling points.
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List the differences b/w metals, metalloids, and nonmetals
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metals=shinny, electrical conductor, malleable high melting points. Non metals are dull brittle and poor electrical conductors, may be liq solids or gases at room temp. Metalloids have characteristics of both
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Which metalloid is a semiconductor of electricity
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Silicon
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What factor dictates Boiling and melting points of Halogens and Noble gases?
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Going down the P. Table getting bigger which takes longer.
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What is the factor that dictates mp and bp of alkaline metals
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As you go up the Table the boiling points increase because the attraction of the P and e.
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What factor dictates the amount of ionization needed to remove an e from an atom
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The further the e are away from the nucleus the less energy it takes to remove the e. And the further you move to the right to more difficult due to the added protons.
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1 km = __ m
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1000m
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1mL =____L
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0.001L
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1 Kg= ___lbs
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2.205 lbs
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1 gallon = ___ L
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3.785
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1 lb=___ g
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453.6 g
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1 m = ___in
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39.37 inches
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NH4+
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Ammonium
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OH-
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Hydroxide
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NO2-
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Nitrite
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NO3-
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Nitrate
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CH3OO-
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acetate
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CN-
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Cyanide
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MnO4-
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Permanganate
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CrO4 2-
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Chromate
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CrO72-
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Dichromate
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HCO3-
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Hydrogen Carbonate
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SO3 2-
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Sulfite
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HSO3-
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Hydrogen sulfite
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SO4 2-
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Sulfate
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HSO 4-
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Hydrogen Sulfate
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PO4 3-
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Phosphate
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