COMMON SENSE IS LIKE DEODORANT, THE PEOPLE WHO NEED IT THE MOST NEVER USE IT.
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Transcript of COMMON SENSE IS LIKE DEODORANT, THE PEOPLE WHO NEED IT THE MOST NEVER USE IT.
![Page 1: COMMON SENSE IS LIKE DEODORANT, THE PEOPLE WHO NEED IT THE MOST NEVER USE IT.](https://reader035.fdocuments.net/reader035/viewer/2022070410/56649eff5503460f94c14a82/html5/thumbnails/1.jpg)
COMMON SENSE IS LIKE DEODORANT, THE PEOPLE WHO NEED IT THE MOST NEVER USE IT.
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WHAT IS AN ACID?
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WHAT IS AN ACID?
A SUBSTANCE THAT PRODUCES HYDROGEN IONS WHEN DISSOLVED IN WATER.
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WHAT IS A BASE?
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WHAT IS A BASE?
A SUBSTANCE THAT PRODUCES HYDROXIDE IONS WHEN DISSOLVED IN WATER.
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GIVE AN EXAMPLE OF AN ACID.
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GIVE AN EXAMPLE OF AN ACID.
HYDROCHLORIC ACID, HCl
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GIVE AN EXAMPLE OF A BASE.
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GIVE AN EXAMPLE OF A BASE.
SODIUM HYDROXIDE
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WHAT MAKES AN ACID OR A BASE A STRONG ACID OR BASE?
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WHAT MAKES AN ACID OR A BASE A STRONG ACID OR BASE?
THEY DISSOCIATE COMPLETELY IN SOLUTION.
A STRONG ACID DISSOCIATES INTO HYDROGEN ION AND THE ANION OF THE ACID.
HCl H+ + Cl-
A STRONG BASE DISSOCIATES INTO HYDROXIDE ION AND THE CATION OF THE BASE.
NaOH Na+ + OH-
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WHAT MAKES AN ACID A WEAK ACID OR A BASE A WEAK BASE?
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WHAT MAKES AN ACID A WEAK ACID OR A BASE A WEAK BASE?
THEY ONLY PARTIALLY DISSOCIATE (BREAK APART) IN SOLUTION.
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GIVE AN EXAMPLE OF A WEAK ACID.
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GIVE AN EXAMPLE OF A WEAK ACID.
ACETIC ACID (VINEGAR IS ~3% ACETIC ACID.)
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GIVE AN EXAMPLE OF A WEAK BASE.
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GIVE AN EXAMPLE OF A WEAK BASE.
AMMONIA IS A WEAK BASE
NH3 + H2O NH4+ + OH-
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WHAT SCALE IS USED TO MEASURE THE ACIDITY OR BASCITY OF SOLUTIONS?
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WHAT SCALE IS USED TO MEASURE THE ACIDITY OR BASCITY OF SOLUTIONS?
THE pH SCALE
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ON THE pH SCALE, WHAT IS THE pH OF A NEUTRAL SOLUTION?
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ON THE pH SCALE, WHAT IS THE pH OF A NEUTRAL SOLUTION?
7
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ON THE pH SCALE, WHAT IS THE pH OF A BASIC SOLUTION?
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ON THE pH SCALE, WHAT IS THE pH OF A BASIC SOLUTION?
GREATER THAN 7
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ON THE pH SCALE, WHAT IS THE pH OF AN ACIDIC SOLUTION?
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ON THE pH SCALE, WHAT IS THE pH OF AN ACIDIC SOLUTION?
LESS THAN 7
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GIVE 3 CHARACTERISTICS OF AN ACID.
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GIVE 3 CHARACTERISTICS OF AN ACID.
1) THEY HAVE A SOUR TASTE
2) THEY TURN BLUE LITMUS RED
3) THEY REACT WITH BASES TO PRODUCE WATER AND A SALT
4) THEY REACT WITH ACTIVE METALS TO PRODUCE HYDROGEN
5) THEY REACT WITH CARBONATES TO RELEASE CARBON DIOXIDE GAS
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GIVE 3 CHARACTERISTICS OF A BASE.
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GIVE 3 CHARACTERISTICS OF A BASE.
1) THEY HAVE A BITTER TASTE
2) THEY FEEL SLIPPERY
3) THEY TURN RED LITMUS BLUE
4) THEY REACT WITH ACIDS TO PRODUCE A SALT AND WATER
5) THEY REACT WITH MOST METAL CATIONS TO FORM A PRECIPITATE
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WHAT CAUSES ACID RAIN?
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WHAT CAUSES ACID RAIN?
OXIDES OF SULFUR AND NITROGEN PRODUCED FROM COMBUSTION SOURCES (COAL FIRED POWER PLANTS AND CARS AND TRUCKS)
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WHY IS ACID RAIN IMPORTANT?
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WHY IS ACID RAIN IMPORTANT?
THERE IS A NARROW RANGE THAT FISH AND OTHER ORGANISMS IN STREAM CAN TOLERATE.
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HOW COULD YOU DETERMINE THE pH OF A WATER SAMPLE?
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HOW COULD YOU DETERMINE THE pH OF A WATER SAMPLE?
BY USING INDICATOR DYES OR pH ELECTRODES.
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