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Search Results for acids - All Grades

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Grade 6 Environmental Science
What is one natural source of gas that produces acid precipitation?
  1. car exhaust
  2. volcanoes
  3. cave systems
  4. factories
Grade 7 Environmental Science
CFC's, HCFC's and halons come from all of the below except:
  1. air conditioners
  2. refrigerators
  3. spray cans
  4. garbage
  5. computers
Grade 7 Environmental Science
Automobiles produce this when they burn gasoline:
  1. carbon dioxide
  2. acid rain
  3. nitrogen oxides
  4. ozone
Grade 5 Chemistry
A student added an unknown solution to cabbage juice, and the solution changed from a purple to a red/pink. Which statement is true?
  1. The solution is a strong base
  2. The solution is an acid
  3. The solution is a neutral
  4. None of the above
Grade 7 Environmental Science
Grade 7 Atmosphere
Ozone in the upper atmosphere is also called:
  1. pollution
  2. man made
  3. Stratosphere
  4. Troposphere
Grade 9 DNA, RNA, and Genetics
What is the amino acid for the start codon AUG?
  1. methionine
  2. alanine
  3. proline
  4. serine
Grade 8 Biochemical Pathways
Where can lactic acid fermentation be found to occur?
  1. in bread that is rising
  2. in any environment without oxygen
  3. in muscle cells
  4. in mitochondria
Grade 7 Environmental Science
Grade 9 Acids and Bases
Which of the following sets of acids form the primary component of acid rain?
  1. Carbonic acid, Sulphuric acid, Nitric acid
  2. Sulphuric acid, Phosphoric acid, Boric acid
  3. Carbonic acid, Hydrochloric acid, Acetic acid
  4. Nitric acid, Perchloric acid, Hydrofluoric acid
Grade 9 Acids and Bases
Which of the following theories defines acid as a species that forms hydronium ion in water?
  1. Arrhenius theory
  2. Lewis acid-base theory
  3. Lowry-Bronsted theory
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