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Q

How is water able to dissolve ionic substances?

A

Water can dissolve the ionic compound because of the diference between its hydration and lattice energy.

3 years ago
246 Views
How do you calculate the number of atoms of an element if you know the mass of the sample?

The given mass of an element can be found using Avogadro's number, which equals 6.02214076 × 1023 mol-1 and gives you one mole of anything. 1. You determine the molar…

3 years ago
117 Views
Which one of the following compounds can be expected to have the highest lattice energy?

Correct answer is 1. MgO is expected to have the highest lattice energy.

3 years ago
107 Views
Is BrCl3 polar or nonpolar?

Hi there! BrCl3 is definitely a polar molecule, it is evident from its T-shaped molecular geometry.

3 years ago
124 Views
Specify the number of protons, neutrons, and electrons in the neutral atom copper-64.

No of protons - 29 No of neutrons - 35 No of electrons - 29 Explanation: Since the atomic number of copper is 29, the number of protons equals 29…

3 years ago
163 Views
What is the net ionic equation of the reaction of MgCl2 with NaOH?

First, you should write a molecular equation: MgCl2(aq) + 2NaOH(aq) ==> Mg(OH)2(s) + 2NaCl(aq) Then, the net ionic reaction will equal: Mg^2(aq) + 2OH^-(aq) ==> Mg(OH)2(s)

3 years ago
172 Views
The average rate of consumption of Br− is 1.06×10−4 M/s over the first two minutes

Here's the solution: The rate of the reaction is R R = - 1/5 * (d*[Br2])/dt The average rate of consumption of bromine is 1.76 * 10-4 M/s, therefore, -…

3 years ago
152 Views