How many liters of oxygen gas is required to react with 50.0 g of aluminum at STP? 4Al + 3O2 → 2Al2O3​

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

What was bohr’s contribution to the planetary model

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride