Fuel is a substance that will undergo combustion to produce heat when the substance comes in contact with oxygen at a temperature that is equal... View Article
Probably the first use made of gypsum was as a plaster of Paris. Its application in the arts has been extended until it is now one of the... View Article
Ph is a measure of how acidic or basic is an aqueous solution. It is measured in terms of hydrogen ion concentration in the solution. The... View Article
Although friction is of great importance in our daily life, yet in many situations, it acts evil. Friction produces heat that causes objects... View Article
Frictional force plays an important role in our daily life. A running car or bicycle uses friction to stop. As the driver steps on the breaks,... View Article
Answer: The name plaster of Paris came from the fact that it was first of all made by heating gypsum which was mainly found in Paris. The... View Article
Answer: Current is the aggregate flow of electrons through a wire and can be defined as the rate of electron flow. Resistance is defined as an... View Article
The net ionic equation for the overall reaction that occurs when aqueous solutions of sodium hydroxide and oxalic acid (H2C2O4) are combined and... View Article
The structure proposed by Kekule was unable to explain the following facts. The Kekule structure predicts that there should be two different... View Article
Aluminum Chloride (AlCl3) figures among the most used Lewis acids and is one of the most powerful as well. Widely used as a catalyst, this... View Article
Recall Bohr's atomic model theory. The Bohr Model of the Atom In 1911 at the age of 25, Niels Bohr received his Ph.D. in physics. He was... View Article
X-rays are a form of ionizing radiation. They are high-energy photons (electromagnetic radiation) released when inner shell electrons that have... View Article
Both aldehydes and ketones are organic compounds with carbonyl functional groups, but they have different molecular structures. In methanol... View Article
According to Kekule, six carbon atoms of benzene are linked to each other by alternate single and double covalent bonds to form a hexagonal ring.... View Article
Liquid nitrogen is probably the most promising non-polar inorganic compound. Liquid nitrogen begins to boil when exposed to air. The steam around... View Article
The vapor pressure of liquid aluminum is 400 mm Hg at 2.59 x 103 K. Assuming that its molar heat of vaporization is constant at 296 kJ/mol, the... View Article
A limiting reactant or limiting reagent is the reactant that is completely consumed in a reaction. The reaction stops as soon as the limiting... View Article
Consider In a closed container there are 1,962 molecules of C4H10 and 11,700 molecules of O2. The following are the steps to determine the... View Article
