Match the following terms and definitions. 1. consistency of getting the same measurement
weight
2. closeness to actual measurement
precision
3. ratio of densities
accuracy
4. the amount of matter in an object
mass
5. measure of pull of gravity
specific gravity
6. mass divided by volume
volume
7. Archimedes' Principle
buoyancy
8. how much space an object takes up
density

answer; i believe that the correct answer is (a); a large rock being weathered by wind and rain;

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 !

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

that's what i got you can count the number of atoms