What is the atom inventory for the following equation after it is properly balanced? NaOH + CuCl2 Imported Asset NaCl + Cu(OH)2 Reactants: Na = 1, O = 1, H = 1, Cu = 2, Cl = 2; Products: Na = 1, O = 1, H = 1, Cu = 2, Cl = 2 Reactants: Na = 1, O = 2, H = 2, Cu= 2, Cl= 2; Products: Na = 1, Cl = 1, Cu = 2, O = 2, H = 2 Reactants: Na = 1, O = 1, H = 1, Cu = 1, Cl = 21; Products: Na = 1, O = 1, H = 1, Cu = 1, Cl = 2 Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2; Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2;

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

Explanation:

NaOH + CuCL2 —> NaCl + Cu(OH)2

The balanced equation can be achieved by doing the following:

There are 2 oxygen and 2 hydrogen atom on the right side. This is balanced by putting 2 in front of NaOH as shown below:

2NaOH + CuCL2 —> NaCl + Cu(OH)2

This makes Na to be unbalanced. Now to balance Na, put 2 in front of NaCl as illustrated below

2NaOH + CuCL2 —> 2NaCl + Cu(OH)2

Now the equation is balanced.

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

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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.