When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2Al(s) + 6HCl(aq) 2AlCl3(aq) +3H2 (g)
If 24.9 moles of hydrochloric acid are reacted with excess aluminum, how many moles of aluminum chloride could be formed?

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes

Heat energy, carbon dioxide, and water are released through which process? a. photosynthesis b. depolymerization c. digestion d. cellular respiration

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control?