Which method is the typical first step when scientists communicate their scientific results?

The correct answer is submission of the results to a scientific journal for  a peer review.

Explanation:

It is the responsibility of the scientists to submit their results to the scientific peer review journals after attaining the results from the experiments. This is very essential as it is the duty of the scientists to handle the journals in order to completely scrutinize the set of the experiments and the outcomes attained in order to make sure that they all are devoid of any kind of mistakes and there is validity in the results obtained.

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.