Exams & Certification

Which fraction is not equivalent to 9/12 1. 24/32 2. 6/8 3. 15/20 4.16/24 The Correct Answer and Explanation is: The correct answer is: 4. 16/24 To determine which fraction is not equivalent to 9/12, we must first simplify 9/12 to its lowest terms. To do this, find the greatest common divisor (GCD) of the […]

The electron configuration of calcium ion (Ca+1) has its atomic number 20. It has 2 unpaired electrons and is paramagnetic. The Correct Answer and Explanation is: Correct Answer:The electron configuration of a calcium ion with a +1 charge (Ca⁺) is:[Ar] 4s¹ Ca⁺ has 1 unpaired electron and is paramagnetic. Explanation: Calcium (Ca) is an alkaline

3. Calculate the answers to the appropriate number of significant figures. a) 23.7 \times 3.8 = e) 43.678 \times 64.1 = b) 45.76 \times 0.25 = f) 1.678 / 0.42 = c) 81.04 \times 0.010 = g) 28.367 / 3.74 = d) 6.47 \times 64.5 = h) 4278 / 1.006 = The Correct Answer and

The electron configuration of the calcium ion is Ca2+, 1s^2 2s^2 2p^6 3s^2 3p^6. Provide the electron configuration for each of the following (atom or ion) in the space provided: (0 points) Se? Complete the orbital diagram provided for a chromium atom. Show any unpaired electrons as single barbed arrow pointing up, and paired electrons

The = graph of a function f is given: Use the graph to answer the question Use the graph of f given below to find ((50), 100 The Correct Answer and Explanation is: Understanding the Graph of a Function To find the value of a function, such as f(x), from its graph, we need to

The graph of a function f is given: Use the graph to answer the question Use the graph of f given below to find f(20). ~25 The Correct Answer and Explanation is: Correct Answer:f(20) = 15 Explanation: To find the value of a function, such as f(20), from its graph, we need to determine the output

What is the chemical formula for all monomers of carbohydrates? 15. Label the three monosaccharides in the pictures below. a. Are these monomers or polymers? b. What characteristics determines which monosaccharide it is? c. The three monosaccharides below have the same chemical formula, but different shapes, so they are known as 16. The chemical combination

Determine if the system has a nontrivial solution (you do not need to completely solve the system). x1 – 3×2 + 7×3 = 0 -2×1 + x2 – 4×3 = 0 x1 + 2×2 + 9×3 = 0 The Correct Answer and Explanation is: To determine if the system has a nontrivial solution, we need

Determine if the system has a nontrivial solution. Try to use as few row operations as possible. 6x^2 + 7xz 6x^3 + 4x^3 Choose the correct answer below: The system has only a trivial solution: The system has a nontrivial solution: It is impossible to determine. The Correct Answer and Explanation is: ChatGPT said: To

Blank effects the amount and rate the alcohol reaches the bloodstream The Correct Answer and Explanation is: Correct Answer:Stomach contents affect the amount and rate the alcohol reaches the bloodstream. Explanation When alcohol is consumed, it enters the body through the mouth and travels down the esophagus into the stomach. Unlike most nutrients that are