Basic Chemistry Final Exam

A homogeneous mixture of two or more substances is called as

• solution

• solute

• solvent

The substance present in a smaller amount is called as

• solution

• solute

• solvent

The substance present in a larger amount is called as

• solution

• solute

• solvent

Picture (a) is depicted

• nonelectrolyte

• very weak electrolyte

• weak electrolyte

• strong electrolyte

• very strong electrolyte

Picture (b) is depicted

• nonelectrolyte

• very weak electrolyte

• weak electrolyte

• strong electrolyte

• very strong electrolyte

Picture (c) is depicted

• nonelectrolyte

• very weak electrolyte

• weak electrolyte

• strong electrolyte

• very strong electrolyte

How many grams of potassium dichromate (K2Cr2O7 ) are required to prepare a 125 mL solution whose concentration is 1,83 M? The molar mass of K2Cr2O7 is 294,2 g.

(a)  

All forms of energy can be converted (at least in principle) from one form to another. It is stated as the law of

(a)  

This picture is depicted (a)   reaction

Classify each of the following as an open system, a closed system, or an isolated system: Soup kept in a closed thermo flask

• open system

• closed system

• isolated system