try this solution:
if 1 mole is 55.8 gr., then 2.25 moles the mass should be 55.8*2.25=125.55 gr.
answer: 125.55 gr.
a because kcl 2 and k + cl cancel out and both of the ca cancel each other out
answer:the most abundant isotope is ³⁵cl₁₇.since the average atomic mass of cl is 35.45 g/mole, so the most abundant one is that one near this number, ³⁵cl₁₇.³⁵cl₁₇ is found by 75 % and ³⁷cl₁₇ is found by 25 % by a ratio 3: 1.
how does a steam engine do...