Natasha measures the masses of three objects and records her results in the table. Object MassSphereCube400 g378 g4129PyramidWhat should Natasha do next to determine the densities of the objects?She should measure the volume of each object. She should mea[ure the temperature of each object. She should measure the circumference of each objectO She should measure the surface area of each object.

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 !

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

it's c. elements are placed in rows based on how may valencies electrons have.