Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) How many grams of hydrogen can be produced when 4.00 g of HCl is added to 3.00 g of Mg? Assuming STP, what is the volume of this hydrogen?

What is i fracture in the crust called when land move up, down or sideways

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2: