In stoichiometric calculations, which quantity MUST be used to convert from one chemical substance to another? А
percent composition
B
percent yield
C mole ratio
D
molar mass

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine