An anode and a cathode are the two types of terminals in an electronic device. The cathode is the terminal where current leaves an electronic device. The anode is the terminal where current flows into an electronic device. Electrical current is the amount of charge that passes a fixed point in one unit of time.Know More
In a standard battery, such as a D-size flashlight battery, the anode is the positive terminal and the cathode is the negative terminal. The anode of a battery is involved in an oxidation reaction. Electrons that reside in the anode are transferred into the electrolyte as a result of this reaction. The cathode of a battery is involved in a reduction reaction. This results in the cathode gaining electrons from the electrolyte. Excess electrons in the cathode are forced out through the circuit and back into the anode. Electrons are negatively charged and are repelled by the negatively charged cathode. The force of this repulsion is called voltage.
In other electronic devices the polarity is reversed. The anode is the negative terminal and the cathode is the positive terminal. The flow of current remains the same. Current always flows out of the cathode and into the anode.Learn more about Chemistry
According to the acid-base tutorial from Tulane University Department of Anesthesia, standard bicarbonate is the bicarbonate concentration under standard conditions of 40 mmHg pCO2, temperature of 37 degrees Celsius and saturated with oxygen. The term standard bicarbonate was introduced by Jorgensen and Astrup in 1957.Full Answer >
The difference between iron and steel is that iron is an element, and steel is an alloy of iron, small amounts of carbon and another material, usually another element like chromium. Iron is alloyed with other elements to make it stronger and more useful and to keep it from rusting.Full Answer >
Enantiomers are isomers that are mirror images of each other and diastereoisomers are those that are neither mirror images nor the same molecule. In both cases the molecules have the same atoms connected to each other in the same way. The differences between these isomers are the spatial arrangements of the atoms based on the 3D-bond geometry.Full Answer >
When discussing solutions, the solute is the substance which dissolves, while the solvent is the substance into which the solute dissolves. Creating a salt water solution involves dissolving salt in water, making salt the solute and water the solvent. However, determining which is the solute or solvent is not always so simple, and some rules exist for determining which substance dissolves in the other.Full Answer >