Can some one write word equation and skeleton equation for these pleaese 1. Calcium hydrogen carbonate reacts with hydrobromic acid to produce calcium bromide, water, and carbon dioxide.

2. during combustion, benzene (C6H6) and oxygen gas react to produce carbon dioxide and water.

3. at high temperatures , a reaction between silicon tetrachloride and silicon produces disilicon hydrochloride (hexa-means six,)

1. Ca(HCO₃)₂ + HBr ⇒ CaBr₂ + H₂O + CO₂ (you can always google the formulas of the compounds if you don't know them)

2. C₆H₆ + O₂ ⇒ CO₂ + H₂O

3. SiCl₄ + Si ⇒ S₂Cl₆ (i think you meant hexachloride instead of hydrochloride)

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

thats a little if u want the answer just look it up on google thats what i do haha : )