hemistry student Ana had a chance to look over the results for her entire class. She noticed a trend among the results:The percent error was greater for cases where the percent composition was low. Trial 6 had only 5 copper pennies and the percent error for the precent composition of copper was about 50%. Trial 7 had only 5 zinc pennies and had a percent error of about 80% for the percent composition of zinc pennies. Suggest an explanation for why this might be true. Answer the question that is asked. Regardless of your personal feelings, you have to suggest an explanation for why Ana's statement might be true.

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

An observation that requires measurement is called quantitative observable or qualitative

Apush or pull that moves or changes and object when to objects touch