After an investigation, kuri determines that her hypothesis was wrong. what is the best thing for kuri to do next? a)propose a scientific theory that explains what went wrongb)write a new hypothesis and conduct new experiments to explore the matterc)rewrite a scientific law to better predict the observations she gatheredd)move on to a different topic because there is no value in a wrong hypothesis

The answer is b. Write a new hypothesis and conduct new experiments

B)write a new hypothesis and conduct new experiments to explore the matter

Explanation:

A hypothesis is both testable and falsifiable. Upon conducting tests on a hypothesis it could be proven correct or incorrect. In instance where the hypothesis is incorrect, the scientist has to write a new hypothesis and test it by conducting new experiments.

A scientific theory is new proposed to explain a false hypothesis. Therefore option A is incorrect. Laws are never rewritten, they become law after several rounds of testing and after reaching a consensus in the scientific community. Therefore option C is incorrect. One can always write a new hypothesis on the same continue and continue with the investigation. Therefore option D is incorrect.

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.