Introduction to Chemistry- Milestone 4

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Babson College *

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MICROBIOLO

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Chemistry

Date

Nov 24, 2024

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pdf

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Uploaded by DrArmadillo3387

1 CONCEPT → Polymers 2 15/15 ߍ that's 100% RETAKE ׌ 15 questions were answered correctly . Which of these is an example of an aromatic polymer? Report an issue with this question To answer this question, you may need access to the periodic table of elements, a calculator, and the equations and charts in the tutorial associated with this question. ● ׊ ׊ ● ׊ ● tetraﬂuoroethylene ● polyethylene ژ Kevlar ● polypropylene UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

CONCEPT → Acid and Base Reactions 3 RATIONALE The products of a neutralization reaction are salt and water. The salt is formed from the cation of the base and the anion of the acid. In this case, the cation of the base is Ca² ⁺ and the anion of the acid is SO₄² ⁻ , so the salt will be CaSO₄. Report an issue with this question Which of the following must be present with a weak base to make a buffer? ׊ ● ׊ ׊ ● CO₂ and H₂O ژ CaSO₄ and H₂O ● Ca(OH)₂ and H₂SO₄ ژ conjugate acid ● strong acid strong base UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

CONCEPT → Buffers 4 CONCEPT → Functional Groups in Organic Chemistry 5 Report an issue with this question The -CHO functional group characterizes which family of organic compounds? Report an issue with this question A compound that is defined by its ability to donate a proton to another compound is known as a(n) _____. ● ׊ ׊ ● ׊ ژ aldehydes ● amines ● alcohols ● esters UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

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CONCEPT → Molecular Definitions of Acids and Bases 6 CONCEPT → Drugs and Medicine Report an issue with this question Which illegal drug was initially part of the recipe of Coca-Cola? ׊ ● ׊ ׊ ● ● Lewis acid ژ Brønsted-Lowry acid ● amphetamines ● codeine ● ketamine ژ cocaine UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

7 CONCEPT → Pollution 8 What is the main pollution source of nitrogen oxides? Report an issue with this question Which biomolecules speed up chemical reactions? ● ׊ ׊ ● ׊ ● volcanoes ژ vehicles ● uranium ● Open ﬂame ● carbohydrates ● lipids UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

CONCEPT → Biochemistry and Biomolecules 9 CONCEPT → Introduction to the Atmosphere 10 Report an issue with this question What scientific discipline attempts to understand the weather in the long-term? Report an issue with this question ׊ ● ׊ ׊ ● ׊ ژ ● astronomy ژ climatology ● meteorology ● geology UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

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CONCEPT → Greenhouse Gases 11 Report an issue with this question Which form of electromagnetic radiation can be seen by pit vipers but not humans? ׊ ● ׊ ׊ ● ice cores ژ human activity ● depletion of the ozone layer ● volcanoes ژ infrared ● ultraviolet ● microwaves UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

→ Ozone Layer 12 CONCEPT → Chemical Cycles 13 Report an issue with this question Which of these cycles is most important for respiration? Report an issue with this question Which of these is a chemical that is used as a pain reliever? ● ׊ ׊ ● ׊ ● nitrogen ژ oxygen ● hydrological ● phosphorus UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

CONCEPT → Properties of Acids and Bases 14 Report an issue with this question To answer this question, you may need access to the periodic table of elements, a calculator, and the equations and charts in the tutorial associated with this question. What is the hydroxide ion concentration in a solution whose pH is 6.52 at 25 ⁰C? ׊ ● ׊ ● ● acid ژ analgesic ● 3.0 x 10⁷ M ● 7.48 M ● 3.1 × 10 ⁻ ⁷ M UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15

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CONCEPT → pH and pOH 15 CONCEPT → Introduction to Organic Chemistry First find the pOH from the pH: pOH = 14.00 – 6.52 = 7.48. Using the equation [OH ⁻ ] = 10^–pOH, [OH ⁻ ] = 10^–7.48 = 3.3 × 10 ⁻ ⁸ M Report an issue with this question Which of the following hydrocarbons contain ring structures? Report an issue with this question ● ׊ ׊ ژ aromatics ● alkenes ● alkanes ● alkynes UNIT 4 — MILESTONE 4: Hydrogen and Carbon Milestone 15/15