2) A student determined the melting point of a substance to be 55.2DC. If the accepted value is 50.1C, what is the percent error in the student's determination?
A) 12.0 B) 5.10 C) 10.2 D) 9.24

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.

Consider this initial-rate data at a certain temperature for the reaction described by

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.