How many oxygen atoms are present in one molecule of nickel hydroxide, 3ni(oh)2?
a. 1
b. 2
c. 3
d. 4

Answer : The correct option is, (b) 2

Explanation :

The given compound is,

In compound, 1 atoms of nickel, 2 atoms of oxygen and 2 atoms of hydrogen.

In compound, 3 atoms of nickel, 6 atoms of oxygen and 6 atoms of hydrogen.

That means,

As, 3 molecules of contains 6 atoms of oxygen atoms.

So, 1 molecule of contains atoms of oxygen atoms.

Hence, the correct option is, (b) 2

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation: