MCQ 109: In nature, Magnesium Oxide (MgO) is A. acidic B. alkaline C. catalyst D. neutral

Q: MCQ 40: The color of lodine (1) is A. grey B. black (s) C. purple (vapors) D. all of above

A: Iodine is element in the periodic table having elemental symbol I and atomic number 53 and belongs…

Q: 8. What volume of 0.200M HI is needed to neutralize 65.0 g NaOH? c. 13.0 L d. 8.12 L a. 0.325 L b.…

A: Given,0.200 M HI,65 g of NaOH

Q: Ozone is formed in the atmosphere by the combination of oxygen molecules with A.…

A: Ozone having formula (O3 ) is created primarily by ultraviolet radiation in stratosphere.  It is…

Q: Dr. Evil prescribed Austin 2.0 mL of 1:40 evil truth serum. However, Scotty ordered 1:100 evil truth…

A:

Q: What is the difference between dissolved oxygen and oxygen in air?   Why is D.O. an important…

A: Dissolved oxygen (DO) and oxygen in air refer to two different forms of oxygen. Oxygen in air refers…

Q: 44. Select the incorrect statement from the following. 單選題 (2分) O A.Micelles form spontaneously when…

A: Micelles form only when the concentration of surfactant(detergent) is greater than the critical…

Q: 22. Which of these elements are the primary components in "hard water"? I. magnesium II. iron III.…

A: Here, we have to find the elements that are the primary components in "hard water".

Q: A mixture contains Na2CO3, NaOH, and inert matter. A sample weighing 1.500 g requires 28.85 mL 0f…

A:

Q: A functional group is a specific cluster of atoms that is a part of a larger organic molecule.…

A:

Q: 11. O2 is - and N, is very . a. reactive, reactive b. reactive, inert c. inert, inert d. inert,…

A: 11. The triple bond is stronger than double bond. Therefore, it needs a lot of energy to break the…