NEED TO TURN THIS IN AT THE END OF THE DAY. PLS HELP ㅠㅡㅠ What problem occurs if the firework mixture is not pure?

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc