Exams & Certification

convert 13/100 as a percentage The correct answer and explanation is: To convert the fraction 13/100 into a percentage, the process involves multiplying the fraction by 100. Calculation: 13100×100=13%\frac{13}{100} \times 100 = 13\% Thus, 13/100 as a percentage is 13%. Explanation: A percentage represents a number as a part of 100, so the term itself […]

Convert the following into La) 3 L 5 dL 9 CL 4 ML The correct answer and explanation is: To convert the given values (3 L, 5 dL, 9 cL, 4 mL) into milliliters (mL), we need to apply appropriate conversion factors based on the metric system. Now, to find the total sum in milliliters,

If an atom contains 18 protons and 18 electrons, what is the atomic number of the element? A. 36 B. 18 C. 1 D. 8. The respective numbers of protons, electrons, and neutrons are: 18. The correct answer and explanation is: The correct answer is B. 18. The atomic number of an element is determined

The Correct Answer and Explanation is: Here are the completed tables with the correct chemical formulae: Table 1: Acid and Conjugate Base acid conjugate base NH₄⁺ NH₃ H₂O OH⁻ HBr Br⁻ Table 2: Base and Conjugate Acid base conjugate acid OH⁻ H₂O H₂PO₄⁻ H₃PO₄ ClO₃⁻ HClO₃ Explanation This exercise is based on the Brønsted-Lowry theory

Why is a melting range recorded for a pure sample instead of a melting point? The correct answer and explanation is: A melting range is recorded for a pure sample instead of a single melting point because of the nature of the melting process. When a compound is heated, it does not necessarily transition from

The Frosty Ice-Cream Shop sells sundaes for $2 and banana splits for $3. On a hot summer day, the shop sold 8 more sundaes than banana splits and made $156. The correct answer and explanation is: Let the number of banana splits sold be represented by xx. Since the shop sold 8 more sundaes than

Which of the following is a qualitative factor of a make-or-buy decision? a. variable manufacturing costs. b. avoidable costs. c. long term relationship with suppliers. d. opportunity costs. The correct answer and explanation is: The correct answer is c. long term relationship with suppliers. In a make-or-buy decision, the decision-maker evaluates whether it is more

If the demand for labor is greater than the supply, A then the price of labor is lower. B the price of labor is higher. C there are fewer jobs available. D a. and c. E b. and c The correct answer and explanation is: The correct answer is B: the price of labor is

How can a reading of melting point analysis tell a compound is pure? The correct answer and explanation is: A melting point analysis is a common method for determining the purity of a compound. The melting point is the temperature at which a solid turns into a liquid. Pure compounds typically have a sharp and

A quart of water weighs about 2.09 pounds. What is the approximate weight of 15.5 quarts of water? 20 The Correct Answer and Explanation is: To find the approximate weight of 15.5 quarts of water, we can multiply the weight of one quart by the number of quarts. Given: Step 1: Multiply the weight of