Exams & Certification

Convert 80 km/h to m/s (using scientific notation and also express your answer in scientific notation). * The density of a substance is 19.6 g/mL, convert this to kg/L (using scientific notation and also express your answer in scientific notation) The Correct Answer and Explanation is: Conversion 1: 80 km/h to m/s To convert kilometers […]

Find the perimeter of quadrilateral ABCD. Round to the nearest tenth. A 5 4 3 B D 2 1 1 2 3 4 5 -1 C 11.3 units 14.6 units 17.4 units 56.0 units The Correct Answer and Explanation is: ChatGPT said: To find the perimeter of quadrilateral ABCDABCDABCD, the distance between each pair of

selling price 950 pesos rate of discount 20% discount sale price The Correct Answer and Explanation is: Correct Answer:The discount sale price is 760 pesos. Explanation:To find the sale price when a discount is given, begin by calculating the amount of the discount. The discount is found by multiplying the original selling price by the

Which of the following situations is achieved in long-run equilibrium in monopolistic competition? Group of answer choices marginal revenue equals marginal cost and price equals average total cost. normal profit is zero and price equals marginal cost. economic profit is zero and price equals marginal cost. production takes place where ATC is minimized. The Correct

Which of the following is not true for monopolistically competitive firms in the long run? Economic profit equals zero, price equals average total cost, average total costs is minimized, marginal revenue equals marginal cost or price exceeds marginal revenue The Correct Answer and Explanation is: Correct answer: Average total cost is minimized. In the long

Many sellers Price equals average total cost in the long run Free entry Identical products The Correct Answer and Explanation is: Correct Answer: Perfect Competition Explanation: The market structure described is perfect competition. This type of market is defined by several key characteristics: Perfect competition is theoretical and rarely exists in the real world. However,

From the ground floor, a man went up six floors and came down six floors. On which floor is he now? The Correct Answer and Explanation is: Correct Answer:The man is on the ground floor. Explanation The scenario begins with the man starting on the ground floor. From this starting position, he ascends six floors.

For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy ASrxn. If it’s not possible to decide with the information given, check the “not enough information” button in the last column. Note for advanced students: Assume the temperature remains constant. Assume all

ENTROPY AND FREE ENERGY Qualitatively predicting reaction entropy Note fo nced students: Assume the temperature remains constant: Assume all g= reaction sign of reaction entropy As rxn colg) + 2Hz (g) CH,OH (g) not enough information_ ASrxn ASrn 250,(g) 250,( (g) + 02 (g) not enough information_ 4s rxn *4,so,() K,o() H,o’ (a9) HSO4 (aq)

ENTROPY AND FREE ENERGY Qualitatively predicting reaction entropy For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy. If it’s not possible to decide with the information given, check the “not enough information” button in the last column. Note for advanced students: