If 2.18 grams of Br2 react with excess KI, how many grams of KBr are formed? Br2 + 2 KI → I2 + 2 KBr

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa