Question

Write the formulas for the following molecules. (a) methane (b) carbon tetraiodide (c) hydrogen peroxide (d) nitrogen oxide (e) silicon dioxide

Short answer

Question: Provide the formulas for the following compounds: (a) Methane, (b) Carbon Tetraiodide, (c) Hydrogen Peroxide, (d) Nitrogen Oxide, and (e) Silicon Dioxide. Answer: The formulas for the compounds are as follows: (a) CH4, (b) CI4, (c) H2O2, (d) NO, and (e) SiO2.

Step-by-step solution

(a) Methane

Methane is composed of one carbon atom and four hydrogen atoms. The symbol for carbon is "C" and for hydrogen is "H". As there are four hydrogen atoms, we use the subscript 4 for hydrogen. The formula for methane is CH4.

(b) Carbon Tetraiodide

Carbon tetraiodide consists of one carbon atom and four iodine atoms. The symbol for carbon is "C" and for iodine is "I". Since there are four iodine atoms, we use the subscript 4 for iodine. The formula for carbon tetraiodide is CI4.

(c) Hydrogen Peroxide

Hydrogen peroxide is made up of two hydrogen atoms and two oxygen atoms. The symbol for hydrogen is "H" and for oxygen is "O". There are two hydrogen and two oxygen atoms, so we use the subscript 2 for both elements. The formula for hydrogen peroxide is H2O2.

(d) Nitrogen Oxide

Nitrogen oxide is composed of one nitrogen atom and one oxygen atom. The symbol for nitrogen is "N" and for oxygen is "O". Since there is one atom of each element, we do not need to use subscripts. The formula for nitrogen oxide is NO.

(e) Silicon Dioxide

Silicon dioxide consists of one silicon atom and two oxygen atoms. The symbol for silicon is "Si" and for oxygen is "O". As there are two oxygen atoms, we use the subscript 2 for oxygen. The formula for silicon dioxide is SiO2.