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AC-HPAT Chemistry Exam (Latest 2025 / 2026) | Questions with Verified Answers | 100% Correct | Grade A - Algonquin
Question:
hard water
Answer:
Water that has certain dissolved ions in it - predominately calcium and magnesium ions
Question:
soft water
Answer:
Rainwater or chemically softened water that contains only small amounts of minerals and, therefore, allows soap and shampoo to lather freely.
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Question:
Titration
Answer:
process in which a solution of known concentration is used to determine the concentration of another solution
Question:
pH
Answer:
hydrogen ion concentration
Question:
ppm
Answer:
Parts per million - measuring system for the amount of substance present. ( 10 to the -6)
Question:
ppb
Answer:
parts per billion ( 10 to the -9)
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Question:
Major chemical components of earths atmosphere
Answer:
Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent
Question:
greenhouse gases
Answer:
Gases such as carbon dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere which are involved in the greenhouse effect.
Question:
tropospheric ozone
Answer:
type of ozone that creates smog (bad)
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Question:
stratospheric ozone
Answer:
good ozone, produces oxygen molecules to interact with UV radiation and prevent 95% of it from reaching the surface
Question:
carbon monoxide
Answer:
a colorless, odorless toxic flammable gas formed by incomplete combustion of carbon.
Question:
Chlorofluorocarbons
Answer:
group of chemical compounds used in refrigerators, air conditioners, foam packaging, and aerosol sprays that may enter the atmosphere and destroy ozone.
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