PLEASE PLEASE HELP WILL GIVE BRANLIEST in the reacion, Zn + 2 HCl --> ZnCl2 +H2
25 grams of Zn are reacted with 17.5 grams of HCl. how many grams of the excess reactant is left over?

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.