Number of moles in 7.8 x 10(at top of 10 like exponent 23) molecules

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer