Which explains why carbon is a component of so many elements?
a. it appears in more than one form
b. it is the most abundant element
c. it can react with both metals and nonmetals
d. it can form stable compounds with other elements

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.

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins