What is meant by conservation of mass?

Question

another science one from me. I really need to know this! is it somethng to do with chemical equations if so, which one?

Answer 1

The Law of Conservation of Mass is not a difficult one to follow. In a chemical equation, the atoms on the reactants side has to equal the atoms on the products side, since mass/energy is neither created not destroyed, just changed. This is why balancing equations is such an important skill.

Answer 2

Basically it means that if you combine the mass of chemicals before a reaction it will equal out to the mass of chemical afterward. It is based on the conception that mass can never be destroyed. Only reshaped and distributed. The only real exception to this is when you split an atom and turn it into energy. From this however you have a conservation of energy and mass. E=mc2 is the famous equation that calculates the conversion of mass into energy.

Answer 3

Conservation of mass-energy is a fundemental law of physics such that it is not possible to either create nor destroy mass-energy merely change it's physical for, wether that be in a chemical reaction or in a fusion bomb. The sum of the mass-energy is the same before and after any physical change.

Answer 4

conservation of mass means that if you add up the mass of all the "things" the total mass will always be constant, no matter what happens.

The amount of mass converted to energy in a chemical reaction is usually small and can be neglected.

Answer 5

Conservation of mass is that you cannot create or destroy atoms only react them with others to make new materials. This means there is a finite amount of atoms in the universe. usually you come across it here, Mass of Reactants=Mass of Products.

Answer 6

Conservation of Mass is likely considered one of the fundamental policies in chemistry. What it in certainty potential is that what you initiate with would desire to be what you end with. to illustrate, in case you're taking here reaction Calcium + Oxygen = Calcium Oxide 2Ca 2+ + O2 2+ = Ca2O2 = 2CaO I balanced the above equation. finding above, you will discover which you initiate out with 2 Calciums and a couple of Oxygens. once you combine them, the charges swap, making it Ca2O2. once you have 2 costs that are a similar (Calcium has a plus 2 value, Oxygen has a minus 2 value), they cancel out, leaving you with Calcium Oxide. You started with 2 calcium, you end with 2 calcium. you initiate with 2 oxygen, you end with 2 oxygen. for this reason, the Conservation of Mass rule has been observed. i'm hoping this helps :)

Answer 7

Yep ...what zebedee said