PLS HELP Which of the following is a valid mole ratio from the balanced equation Zn+2HCl → ZnCl2+H2? 2 mol H21 mol Zn2 mol H21 mol Zn

2 mol HCl2 mol Cl2
, 2 mol HCl2 mol Cl2, ,

2 mol HCl1 mol ZnCl22 mol HCl1 mol ZnCl2

1 mol ZnCl22 mol Zn

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

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