Escusez moi pour le dérangement, on m’a donné trois exercices à faire en physique-chimie j’en ai fait deux mais je ne suis pas sûre d’avoir juste et je comprends rien à l’exercice 5 si vous pouvez m’aider ou me guider je vous en serai reconnaissante merci d’avance de votre attention.

1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it