Balance this equation:?

Question

HCI + Cu (Then theres a arrow pointing to the products) CuCI(A small 2) + H(small 2)

Answer 1

2HCl + Cu --> CuCl2 + H2

Answer 2

HCl + Cu ---------------> CuCl(small 2) + H(small 2)

[in this chemical equation, there is 1 H (hydrogen atom, 1 Cl (chlorine) atom and 1 Cu (copper) atom at the reactants side (left side) and 1 Cu atom, 2 Cl atoms and 2 H atoms on the products (right) side. to balance this equation, we should make sure that there are the same number of atoms for each element... by adding coefficients (number before each element or compound) to indicate number of moles...]

so the balanced for of this equation is

2HCl + Cu ------------------------> CuCl (small 2) + H (small 2)

and we read this as 2 moles of Hydrocloric acid combined with 1 mole of copper will yield 1 mole of Cuprous (copper) chloride and 1 mole of Hydrogen gas.

Answer 3

I thinks it 2 HCl + Cu --> CuCl (small 2) + H(small 2)

Answer 4

2HCl + Cu -> CuCl2 + H2
the "arrow" means yields and requires two keystrokes.