A student made the following table describing matter and non-matter. Why is the table incorrect? Matter Non-matter Takes up space Does not have a volume Example: wood Does not take up space Does not have a mass Example: heat energy Matter has a volume. Non-matter takes up space. Non-matter has a mass. Wood is an example of non-matter.

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 !

c, liquids evaporate, creating a gas