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1. What does 'the time taken to reach completion decreases if 20cm^3 of hcl containing 4mol/dm^3' means? How to work out to find the concentration?

2(a)What does concentrated hcl means?
(b)What does dilute hcl means?
Which will react faster or slower / a or b?

Thanks sooooo much !!

  • Chemistry -

    You need to clarify this post if you expect an answer. I have no idea what you're talking about.

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