By definition, viscosity is the measure of a liquid's resistance to flow. If a liquid has a low viscosity, it has a low resistance to flow. It may not necessarily always have a low boiling point, melting point, and/or vapor pressure due to this characteristic. Viscosity is just a way to measure and describe one physical characteristic (resistance to flow) of a liquid. The volume of a liquid does not say anything about its physical properties.

Start by writing out the the chemical formulas for the reactants:

In order to figure out the possible products, combine the cation of one molecule with the anion of the other molecule.

For this reaction, the possible products are  and .

Next, use solubility rules to figure out if any precipitate is formed. Since compounds with are soluble,  is soluble. Since  is only soluble when paired with ,  is insoluble.

Thus, we can write the final chemical equation:

Recall the solubility rules:

 is generally soluble, except when paired with .

Solubility rules can help us find the answer to this question. 

First, solubility rules state that all compounds of Group 1A elements on the periodic table are soluble in aqueous solution. This means that all of the alkali metals, including potassium, form compounds which are soluble in aqueous solution; thus,  is soluble in aqueous solution.

Solubility rules also tell us that all ammonium salts (salts of ) are soluble. This means that  is soluble.

Next, solubility rules tell us that all bromide salts are soluble, except for those of , , and . Thus,  is not soluble in aqueous solution. However, as lithium is not included in that list,  is soluble in aqueous solution.

Remember the solubility rules for ionic solids in water:

1) Salts of group 1 (with few exceptions) and NH₄⁺ are soluble

2) Nitrates, acetates, and perchlorates are soluble

3) Salts of silver, lead, and mercury (I) are insoluble

4) Chlorides, iodides, and bromides are soluble

5) Carbonates, phosphates, sulfides, oxides, and hydroxides are insoluble. Exceptions: sulfides of group 2 cations and hydroxides of calcium, strontium, and barium are slightly soluble

6) Sulfates are soluble except for those of calcium, strontium, and barium

Following these rules, we see that MgOH is insoluble in water

Recall how to find the molality of a solution:

First, start by finding the moles of glucose that we have. The molar mass of glucose is .

Next, convert the grams of water into kilograms.

Now, plug in the moles of glucose and kilograms of water into the equation for molality.

Start by assuming that we have  of this solution. Recall that hydrogen peroxide has a molecular formula of .

Use the given density to find the mass of the solution.

Next, find the mass of the hydrogen peroxide present in the solution.

Convert the mass of hydrogen peroxide into moles of hydrogen peroxide.

Recall how to find the molarity of a solution:

Since we have  of solution, the molarity is .

 sodium hydrogen carbonate dissolved in a  solution has . 

The first step is to calculate how many moles of  are present.  

We calculate molarity with the following equation: 

 of  solution are needed to prepare  of .  

We can use the formula 

Therefore, 

The relative concentrations of aluminum sulfate  are