Define the following terms:
(a) Chemical bond
(b) Effervescence
(c) Precipitate
Define the following terms:
(a) Chemical bond
(b) Effervescence
(c) Precipitate
(a) A chemical bond is the physical phenomenon of chemical substances being held together by the attraction of atoms to each other through sharing, as well as exchanging, of electrons - or electrostatic forces.
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds, or through the sharing of electrons as in covalent bonds.
Examples of Chemical Bonds: Water is H2O, meaning that it has one oxygen atom bonded to two hydrogen atoms and each bond is a single covalent bond. Double covalent bonds form when two pairs of electrons are shared between the atoms involved.
(b) Effervescence is the formation of gas bubbles in a liquid by a chemical reaction. An example of effervescence is the release of carbon dioxide which bubbles as a gas from the liquid when limestone chips, which are composed of calcium carbonate, are added to dilute hydrochloric acid.
(c) In chemistry, a precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from solution is called precipitation. Often the precipitate emerges as a suspension. Precipitates can form when two soluble salts react in solution to form one or more insoluble products.
example of precipitates: precipitation. A precipitate is a solid that forms out of a solution. A common example is that of the mixing of two clear solutions:
silver nitrate AgNO3 with sodium chloride NaCl. The precipitate forms because the solid AgCl is insoluble in water.
(a) A chemical bond is the physical phenomenon of chemical substances being held together by the attraction of atoms to each other through sharing, as well as exchanging, of electrons - or electrostatic forces.
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds, or through the sharing of electrons as in covalent bonds.
Examples of Chemical Bonds: Water is H2O, meaning that it has one oxygen atom bonded to two hydrogen atoms and each bond is a single covalent bond. Double covalent bonds form when two pairs of electrons are shared between the atoms involved.
(b) Effervescence is the formation of gas bubbles in a liquid by a chemical reaction. An example of effervescence is the release of carbon dioxide which bubbles as a gas from the liquid when limestone chips, which are composed of calcium carbonate, are added to dilute hydrochloric acid.
(c) In chemistry, a precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from solution is called precipitation. Often the precipitate emerges as a suspension. Precipitates can form when two soluble salts react in solution to form one or more insoluble products.
example of precipitates: precipitation. A precipitate is a solid that forms out of a solution. A common example is that of the mixing of two clear solutions:
silver nitrate AgNO3 with sodium chloride NaCl. The precipitate forms because the solid AgCl is insoluble in water.
