Chemistry Quiz

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What is the chemical name for water?

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What is the most common monosaccharide that serves as the primary energy source for the brain?

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Carbon is a unique element in organic chemistry primarily because it can bond to itself to form which of the following?

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What is the name of the chemical bond that links nucleotides together to form a DNA strand?

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What does the law of conservation of energy state?

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In a Thermogravimetric Analysis (TGA) of a mixture containing calcium oxide (CaO) and calcium carbonate (CaCO3), the sample mass decreases from 155.2 mg to 125.3 mg upon heating. Assuming only the calcium carbonate decomposes, what is the percentage of calcium carbonate in the original mixture? (Atomic weights: Ca = 40.08, C = 12.01, O = 16.00)

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Which of the following is a fictional metal, known for being the primary component of Wolverine's claws in comics?

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Calcium carbonate (CaCO3) is a key component of pearls and shells. When excess carbon dioxide is passed through limewater (a solution of calcium hydroxide), the solution turns cloudy and then becomes colorless again. The colorless solution contains which of the following?

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Which of the following statements about a catalyst is TRUE?

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What is the correct IUPAC name for the compound with the formula (CH3)2CHCH(OH)CH2C(CH3)3?

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Which famous female scientist was awarded the Nobel Prize in 1911 for the discovery of the radioactive elements radium and polonium?

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What was the first element created in a laboratory, in 1937?

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Which of the following is the primary reason that hemoglobin, a conjugated protein with an iron-containing group, is an effective buffer in blood?

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Which of the following is an aromatic hydrocarbon?

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Normal rainwater is slightly acidic, with a pH of around 5.6. This is primarily due to the formation of which of the following compounds?

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What is the hardest naturally occurring form of carbon?

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Noble gases have low boiling points. The best explanation for this phenomenon is that:

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What is the common name for the chemical compound copper sulfate (CuSO4)?

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What is the name for an atom that has gained or lost an electron, giving it a net positive or negative charge?

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The discovery of penicillin, a groundbreaking antibiotic, was a famous case of scientific serendipity. Which of the following describes the initial, accidental observation made by Alexander Fleming?

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In the late 19th century, saccharin, the first commercial artificial sweetener, was discovered by accident. What substance was the scientist Constantin Fahlberg initially studying when he made this discovery?

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The standard enthalpy of combustion (ΔHc⊖) of methane (CH4) is -890 kJ/mol, ethane (C2H6) is -1560 kJ/mol, and methanol (CH3OH) is -726 kJ/mol. Which of the following would result in the greatest increase in the temperature of the surroundings?

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The ozone layer acts as a shield, preventing most ultraviolet (UV) radiation from reaching Earth's surface. Which atmospheric components are primarily responsible for trapping infrared (IR) energy, leading to the greenhouse effect?

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Which of the following Group 2 sulfates is the most soluble in water?

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What is the first element on the periodic table?

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Overview:

Sharpen your understanding of chemistry with this engaging Chemistry Quiz. From the periodic table and chemical bonding to reactions, acids, bases, and real-life applications, this quiz will test your knowledge across all key topics. Whether you’re preparing for exams, brushing up on basics, or just love science, this quiz is designed to challenge and improve your chemistry skills.