1. A chemical substance gives hydrogen ion and chloride ion when dissolved in water. Similarly, another chemical substance gives sodium ion and hydroxide ion. Write their molecular formula
and also chemical reaction between them.

219 grams of iron (iii) oxide reacts with excess carbon according to the reaction equation shown below. fe2o3 + c → fe + co2 after a scientist performs the chemical reaction they find the actual yield of iron to be 57.4 grams. calculate the percent yield of this chemical reaction.

What is the lowest number energy level where a d sublevel is found

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11