What is the percent composition of ca(oh)2

The percentage composition of CA(OH)2 is as follows;

The percentage composition of Ca(OH)2 can be obtained by first determining the molar mass of Ca(OH)2 as follows;

In essence, the molar mass of Ca(OH)2 is;

Therefore;

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% of Ca = 54.092 %.

% of O = 43.188 %.

% of H = 2.721 %.

Explanation:

% of Ca = (Atomic mass of Ca / Molar mass of Ca(OH)₂) x 100 = (40.078 / 74.09268) x 100 = 54.092 %.

% of O = (2 x atomic mass of O / molar mass of Ca(OH)₂) x 100 = (2 x 15.999 / 74.09268) x 100 = 43.188 %.

% of H = (2 x atomic mass of H / molar mass of Ca(OH)₂) x 100 = (2 x 1.00798 / 74.09268) x 100 = 2.721 %.

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.