If a scientist accidentally spills a chemical that causes invalid conclusions, he has

a) ethical mistake

b) a honest mistake

c) a biased judgement

answer asap

Ethical mistake

Explanation:

Spilling a chemical is against the ethics of science because the spilled chemical could have large scale deleterious effects of the fauna and flora. Even though the action in itself is unethical in scientific parlance, but the question is clear about the fact that the scientist made a mistake. Hence we can regard his action as an ethical mistake.

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