3. The test tube that contained the calcuim metal was probably the most difficult of the test tubes to clean. Why was aqueous HCl used to clean the tube

In which situation can a mixture always be called a solution

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

What element has similar physical and chemical properties as boron.