Exams & Certification

There are 1.057 quarts in 1 Liter. There are 4 cups in one quart. Your water bottle reads 1500 mL. How many cups is this? (Hint: convert mL to L before you begin dimensional analysis) A. 0.3975 cups B. 2.515 cups C. 6.342 cups The Correct Answer and Explanation is: To find out how many […]

Metric Units of Length Kilometer Hectometer Decameter Meter Decimeter Centimeter Millimeter 1000 meters = 1 kilometer 100 meters = 1 hectometer 10 meters = 1 decameter 1 meter = 1 meter 0.1 meter = 1 decimeter 0.01 meter = 1 centimeter 0.001 meter = 1 millimeter Dekameter Centimeter Millimeter 1/100 of a meter = 1

The Lewis diagram for BF4- is: The electron-pair geometry around the B atom in BF4- is fill in the blank 1. There are lone pair(s) around the central atom, so the geometry of BF4- is fill in the blank 3. The Correct Answer and Explanation is: Correct Answers: Explanation The Lewis structure of the tetrafluoroborate

How much does 3.75 kg of chocolate if 0.7 kg cost $4.20 The Correct Answer and Explanation is: To find the cost of 3.75 kg of chocolate if 0.7 kg costs $4.20, we first determine the cost per kilogram, then multiply that by 3.75 kg. Step 1: Find the cost per kilogram We are told

. _ quart = 4 gallons 2. grams = 3.5 kilos 3. 64 tablespoons = cups 4. teaspoons = 15 tablespoons 5. tablespoons = 72 ounces 6. 16 pounds = ounces 7. tablespoons = 7 cups 8. 8 quart = gallons 9. cups = 10.5 pint 10. 5 kilos= _ pounds The Correct Answer and

Dissociative disorders are most likely to be characterized by disruptions in conscious awareness and sense of identity. offensive and unwanted thoughts that persistently preoccupy a person. a hyperactive, wildly optimistic state of emotion. alternations between extreme hopelessness and unrealistic optimism. The Correct Answer and Explanation is: Correct answer:Disruptions in conscious awareness and sense of identity.

To understand DNA replication, we need to understand the “why.” Why does DNA need to replicate before cells divide? Oh come on! During my homewo The Correct Answer and Explanation is: DNA needs to replicate before cells divide to ensure that each daughter cell receives an identical copy of the genetic material. This process is

For the following compounds draw the Lewis structure, calculate formal charges on each atom. List the number of electron domains around the central atom and identify the electron domain geometry and the molecular domain geometry. CO2 BCl3 PO2- CH2Cl2 PBr3 PO43- SBr4 IF3 BrF5 XeF4 NH4+ The Correct Answer and Explanation is: Here is a

Determine the formal charge on the chlorine atom in the hypochlorite ion ClO- and the perchlorate ion, ClO4-, if the Cl atom has an octet. b. What are the oxidation numbers of chlorine in ClO- and ClO4-? c. What are the essential differences in the definitions of formal charge and oxidation number that lead to

A student proposes the following Lewis structure for the perchlorate () ion. [ :O: ]$^- \quad \quad || [:Cl-O-O:] \quad \quad || [ :O: ] Assign a formal charge to each atom in the student’s Lewis structure. atom \quad formal charge central O \quad 0 top O \quad 0 right O \quad 0 bottom O