Question

please give Valid answer....I will surely mark him brainliest..​

Answer 1

Explanation:

Formula for calculating moles is

moles= "given mass/molecular mass"

so,

1). 16/4= 4 moles

2). 8/56= 1/7= 0.142857 moles

3). 7/28 = 1/4 = 0.25 moles

so on ......