Write the chemical formulas for the compounds containing each of the following: a) one calcium atom for every two iodide atoms. b) two nitrogen atoms for every four oxygen atoms. c) one silicon atom for every two oxygen atoms. d) one zinc atom for every two chlorine atoms
see above.
a) To determine the chemical formula for a compound containing one calcium atom for every two iodide atoms, we need to identify the charges of the ions involved. Calcium typically has a charge of +2, while iodide has a charge of -1.
Since the charges must balance out in a compound, we combine one calcium ion with two iodide ions. The chemical formula for the compound is CaI2.
b) For a compound containing two nitrogen atoms for every four oxygen atoms, we identify the charges of the ions. Nitrogen typically has a charge of -3, while oxygen usually has a charge of -2.
To balance out the charges, we need two nitrogen ions and four oxygen ions. However, since the charges already balance out without any additional ions, we can simplify the compound's chemical formula to N2O4.
c) For a compound containing one silicon atom for every two oxygen atoms, we need to determine the charges. Silicon typically has a charge of +4, whereas oxygen usually has a charge of -2.
To balance out the charges, we require one silicon ion and two oxygen ions. Therefore, the chemical formula for the compound is SiO2.
d) For a compound containing one zinc atom for every two chlorine atoms, we need to figure out the charges. Zinc typically has a charge of +2, while chloride has a charge of -1.
To obtain a balanced compound, we combine one zinc ion with two chloride ions. The chemical formula for the compound is ZnCl2.