Questions and Answers
How many squares are in this 2×2 grid?
5
What is the magic number?
60
If a multiple-choice question has five answer choices and you submit one wrong answer before getting the question correct, how much credit will you lose for that part of the question?
Enter the molecular formula for butane.
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Enter the symbol of a sodium ion and the formula of a sulfate ion, separated by a comma.
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Enter the expression 147N+α, where α is the lowercase Greek letter alpha.
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Enter the chemical equation for the reaction between hydronium ions and sulfide ions.
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If you have a gross of eggs, how many dozen eggs do you have?
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What is the sum of 9260 and 3240?
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Enter the diameter of a hydrogen atom in its ground state in scientific notation.
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What are the perimeter and area of a rectangle with a length of 5.50 m and a width of 12.0 m?
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In the structure shown, each vertex is a carbon atom; how many carbon atoms are in the described molecule?
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Study Notes
Flashcard Details
- For a 2×2 grid, there are a total of 5 squares.
- The "magic number" referenced is 60.
- In a grading system for multiple-choice questions with 5 options, submitting one incorrect answer results in losing 25% of the credit for that question.
- The molecular formula for butane is C4H10.
- A sodium ion is represented as Na+, and a sulfate ion is represented as SO4²−, entered together as Na+,SO4²−.
- The expression 147N+α includes the Greek letter alpha, represented as 147N+α.
- The chemical equation for hydrogen ions and sulfide ions forming hydrogen sulfide is 2H+(aq)+S²−(aq)→H2S(g).
- A gross is equivalent to 144 items, leading to 12 dozen eggs when applied to eggs.
- The correct sum of 9260 and 3240 is 12500, and large numbers should not include commas when entered.
- The diameter of a hydrogen atom in its ground state is expressed as dH = 1.06×10⁻¹⁰ m.
- For multiple numeric answers, values should be separated by commas; for example, the perimeter and area of a rectangle (length: 5.50 m, width: 12.0 m) are given as perimeter, area = 35.0,66.0 m, m².
- A structure described consists of carbon atoms, with a ring of six carbon atoms and a chain of three carbon atoms, two of which participate in a triple bond.
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Test your understanding of basic concepts in chemistry with these flashcards. Each card presents a key question related to figures and grading rules in the subject. Perfect for quick reviews and mastering important chemistry principles.
