Transcript of Weekly Warm Up temperature T or F: Solubility of solids are affected by pressure. The solubility...
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- Weekly Warm Up temperature T or F: Solubility of solids are
affected by pressure. The solubility of a gas is affected by
___________ AND ________. The _____ the temperature of the solvent,
the ______ the solubility of the gas. Give an Example. pressure
lower higher Cola going flat when hot.
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- Chapter 22: Acids, Bases & Salts Part 1: Acids & Bases
They are everywhere.. In your food In your house EVEN IN YOU!!!!!
http://www.helpteaching.com/questions/Acids_and_Bases
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- What is an Acid? It comes from the Latin word acidus that means
_____" or ____". An acid is a solution that has an excess of
________ ions. ___ HCl H + (aq) + Cl - (aq) The _____ the [H + ],
the _____ acidic the solution. hydrogen sharpsour (H + )
highermore
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- Properties of an Acid Tastes ____ Conduct ________ ________,
which means they break down certain substances. Many acids can
______ fabric, skin, and paper Some acids react _______ with metals
Turns blue litmus paper ____. sour electricity Corrosive damage
strongly red
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- Types & Uses of Acids Acetic Acid = Vinegar Citric Acid =
Citrus: lemons, limes, & oranges. Candies: lemonhead & sour
patch. Hydrochloric Acid = gastric juices Ascorbic Acid = Vitamin C
which your body needs to function. Sulfuric Acid = used in the
production of fertilizers, steel, paints, plastics, & car
batteries. Nitric Acid = fertilizers & explosives (TNT)
Carbonic Acid = carbonated drinks, cave formation, and acid
rain
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- Base What is a Base? A base is a solution that has an excess of
_________ ions. ____ NaOH in H 2 O Na + (aq) + OH - (aq) Another
word for base is ______. Many bases are _____ compounds. Bases are
any substances that can _______ hydrogen ions (H + ) from acids
even if it doesnt have OH. Therefore, bases are able to __________
acids. hydroxide (OH - ) alkali accept ionic neutralize
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- Base Properties of a Base Feel _____, _______ Taste _____,
______ ________ Can conduct ________. (Ex: _______ batteries.) Do
not react with ______. Turns red litmus paper _____. slippery
bitter Corrosive electricity Alkaline metals blue chalky soapy
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- Bases Uses of Bases soaps ammonia blood NOTE: NEVER mix Ammonia
with Sodium hydroxide (bleach). The toxic gas produced damages
_____ tissue and can be ______. NaOH-sodium hydroxide (LYE) soaps,
drain cleaner, bleach, paper Mg (OH) 2 -magnesium hydroxide -
antacids Al(OH) 3 -aluminum hydroxide - antacids, deodorants, water
purification NH 4 OH-ammonium hydroxide - ammonia, household
cleaner* Bases give ______, ________, and many other cleaning
products some of their useful properties. Your _____ is a slightly
basic solution. lung lethal
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- pH is an abbreviation for "power of __________" where "p" is
short for the German word for power, potenz and H is the element
symbol for hydrogen. It is used to measure how _____ or ______a
solution is ______ paper is used as the pH indicator. It is a
logarithmic scale that runs from _______ to ___. pH scaleeach step
is ____ times stronger or weaker than the one next to it! A
solution with a pH of 7 is _______. For example, a pH of 3 is 10
times more acidic than a pH of 4 and 100 times (10 times 10) more
acidic than a pH value of 5.than a pH of 4 What is pH? acidicbasic
zero (0) 14 neutral hydrogen litmus 10
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- pH Scale ____ _____ has a pH of 7. Therefore it is _______.
______ solutions = pH _____ than 7. o Hydrochloric acid is very
acidic. _____ solutions = pH _______ than 7. o Drain cleaner is
very basic. Pure water Acidic Basic greater less neutral
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- Compare & Contrast Activity
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- Weekly Warm Up B represents a(n) ______ solution. The pH scale
is a logarithmic scale that runs from ___ to ___. A solution with a
pH of 2 is ____ times more ______ than a solution with a pH of
5.basic 0 14 1000 acidic
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- Unit Vocabulary Any process by which electrically neutral atoms
or molecules are converted to electrically charged atoms or
molecules (aka. ions) is called ________. Ions capable of
conducting an electric current are referred to as __________. A
process in which an ionic compound separates into its positive and
negative ions in a solution is describes __________. ___________ is
a reaction between acid and base forming a type of ____ and _____.
o NaOH + HCl NaCl + HOH electrolytes ionization saltwater
Neutralization dissociation
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- Neutralization
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- Acidic Solution: When an acid interacts with water the H + ions
form _________ ions (H 3 O + ). o This is an example of __________.
o The _____ hydronium ions the ________ the acid. Forming Solutions
hydronium more stronger ionization
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- Basic Solution: NaOH in water Na + + OH - o (more hydroxide
ions, more basic) NH 3 + H 2 0 NH 4 + + OH - o ammonia gas + water
yields ammonium and hydroxide ions Forming Solutions
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- What is a Buffer? A buffer is an aqueous solution that has a
highly stable pH. If you add acid or base to a buffered solution,
its pH will not change significantly. aqueous
solutionpHacidbase
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- pH Scale A change of 1 pH unit represents a tenfold change in
the acidity of the solution. For example, if one solution has a pH
of 1 and a second solution has a pH of 2, the first solution is not
twice as acidic as the second it is ten times more acidic.
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- Acid Base Reactions A reaction between an acid and a base is
called neutralization. An acid-base mixture is not as acidic or
basic as the individual starting solutions.
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- Acid Base reactions Each salt listed in this table can be
formed by the reaction between an acid and a base.
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- Label as either true (T) or false (F): _____ 1.Acids will not
conduct electricity. _____ 2.Bases will conduct electricity. _____
3.Acids taste bitter. _____ 4.Bases will turn red litmus paper
blue. _____ 5.Acids react with some metals to produce hydrogen gas.
_____ 6.Acids will turn phenolphthalein (PHTH) indicator pink.
_____ 7.An indicator is a substance which changes colors in acids
and bases. _____ 8.Acids have a pH greater that 7. _____ 9.Bases
feel slippery. _____ 10.The pH of pure water is 7. Weekly Warm Up T
T T F F T T F F T Sour Both conduct electricity.