An iron ore sample is found to be 35.00% fe by mass. how many grams of ore are needed to obtain 454.0 of fe?

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?

Nthis lab, you will do experiments to identify types of changes. using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments

In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.