What mass in grams (theoretical yield) of hydrogen is produced by the reaction of 31.3 g of magnesium with 2.12 g of water?
Mg(s) + 2H20 (1) ► Mg(OH)2 (s) + H2 (g)
O 0.474
O 0.0593
2.71
O 0.119
O 0.237

b

explanation:

mitosis

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

explanation:

a