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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: Brivrybio on March 18, 2020, 07:43:58 PM

Title: Which is the most likely to be yielded when calcium and hydrochloric acid react.
Post by: Brivrybio on March 18, 2020, 07:43:58 PM

So I don't know how to approach this problem. The question(s) are basically :
which of the following are likey to occur? Calcium metal and hydrochloric acid yeilds:
A) calcium ion plus hydrogen gas plus chloride ion
B) calcium ion plus hydrogen ion plus chlorine
C) calcium ion plus hydrogen gas plus chloride ion plus hydroxide ion

I understand that the balanced formula is ca + 2 HCl -> CaCl2 + H2

Just how am I supposed to determine if those are possible. I dont even know how to get started. Thank you very much to whomever helps me understand and start this problem

Title: Re: Which is the most likely to be yielded when calcium and hydrochloric acid react.
Post by: chenbeier on March 19, 2020, 05:51:07 AM

Your equation is correct, beside it has to be Ca instead ca, but what ions are present in your equation?

Title: Re: Which is the most likely to be yielded when calcium and hydrochloric acid react.
Post by: MNIO on March 21, 2020, 06:43:24 PM

can you add the phases to this equation?
  1 Ca(?) + 2 HCl(?) -> 1 CaCl2(?) + 1 H2(?)

if the product(s) are dissolved in water (aq) we write them as ions right?
  1 AgNO3(aq) + 1 NaCl(aq) ----> 1 AgCl(s) + 1 NaNO3(aq)

the NaNO3 on the right exists as Na+ and NO3- ions
the AgCl exists as a solid AgCl

is it CaCl2(s) or CaCl2(aq)?
is it H2(aq) or H2(g)?