For questions 22 – 24, write an equation for the reaction of hydrogen chloride and sodium sulfide to produce hydrogen sulfide with sodium chloride. (page 582 and page 567-568)
22. show the formulas of the reactants.
23. show the formulas of the products.
24. write the balanced the equation for this reaction. (page 585-587)

Explanation:

Formulas of the reactants are:

Hydrogen chloride : HCL

Sodium sulfide :

Formulas of the products are:

Sodium chloride : NaCl

Hydrogen sulfide :

Balance chemical equation is given as:

2 moles of hydrogen chloride reacts with 1 mole of  sodium sulfide to produce 1 mole of hydrogen sulfide along with 2 moles sodium chloride.

he would use the colour black

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally