(select all correct answers)
for a claim about the natural world to be considered scientific, what attributes must it have?

- it must be consistent with only a small portion of relevant observations or data.
- it must be based on scientific observations that can be repeated in a controlled setting.
- it must be open to modification if new evidence doesn't completely support it.
- it must be applicable to future events and occurrences.

It must be based on scientific observations that can be repeated in a controlled setting.

Explanation:

A scientific claim is the claim which includes statement(s) which is verified by the observations obtain after multiple experimental trials or procedures in a controlled experiment. A scientific claim can only be considered as wrong when a valid argument or prove satisfies the fact why it is wrong.

a

explanation:

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.