A 0.050 M aqueous solution of which compound is the best conductor of electric current?

A 0.050 M aqueous solution of which compound is the best conductor of electric current? (1) C3H7OH (2) C6H12O6 (3) MgSO4 (4) K2SO4 Answer and Explanation: First we need to go over what kind of compounds are the best conductors of electricity, or electrolytes. These are: metals, ionic compounds that are molten, ionic compounds that are dissolved in water, strong acids and strong bases. Let's now go over the compounds listed in answer choices: C3H7OH is a covalent compound (all the elements are nonmetals) and does not conduct electricity, C6H12O6 similarly is a covalent compound because it consists of all nonmetals. Going further, both MgSO4 and K2SO4 are ionic compounds. They consist of a me

The Oxidation State of Nitrogen Is Most Positive In Which Compound?

The Oxidation State of Nitrogen Is Most Positive In Which Compound? This is an SAT Chemistry question from 1998 SAT Chemistry test. a. NO3^-1 b. NO2^-1 c. N2O d. N2 e. NH3 Answer and Explanation: Lets first go over some rules for assigning the oxidation number. Free element has an oxidation number of 0. For example, O2, Fe, Cl2 etc all have oxidation numbers of zero. Therefore, nitrogen in choice d has an oxidation number of 0 All oxidation numbers in a neutral compound add up to 0. For example, lets solve N2O. Oxygen has an oxidation number of -2 as can be seen on the periodic table (group 16 is mostly -2 oxidation number). Lets now make an equation since we dont know nitrogen, we will make

3 Reasons Why It Makes Sense To Get a Tutor Ahead of Time

3 Reasons Why It Makes Sense To Get a Tutor Ahead of Time There is always a question of when to get a tutor. If you anticipate a difficult class and struggle, we recommend getting the tutor ahead of time. Why? 1. Getting a tutor after you didn't do well on an exam might be a little late, since you already have a bad grade on one of the exams. That means you will have to work harder and do even better on the subsequent tests. 2. Getting a tutor ahead of time gives you a peace of mind, and if you study ahead of time it will allow you to feel comfortable with material and confident in your abilities to do well in class. 3. If you have sessions ahead of time, you will be able to come to the clas