## Why is mass conserved during a chemical reaction?

Even in a chemical reaction when atoms interact and create new products, mass is conserved. This is because the new substances created are composed of atoms that were present in the reactants. The atoms from the reactants come apart, rearrange and re-bond in a different arrangement to form the products.

## What does conserved mean chemical reaction?

law of conservation of mass

## Why relativistic mass is wrong?

Using the word “mass” unqualified to mean relativistic mass is wrong because the word on its own will usually be taken to mean invariant mass. For example, when physicists quote a value for “the mass of the electron” they mean invariant mass. At zero velocity the relativistic mass is equal to the invariant mass.Tir 27, 1376 AP

## Does mass change with gravity?

Science Words Massâ€“ the amount of matter than an object is made of. Mass does not change with gravity. Weightâ€“ the amount of gravity acting on (pulling down on) an object (or mass). Earth’s gravity pulls us and all objects downwards towards its center.

## Why is mass relativistic?

Relativistic mass, in the special theory of relativity, the mass that is assigned to a body in motion. The relativistic mass m becomes infinite as the velocity of the body approaches the speed of light, so, even if large momentum and energy are arbitrarily supplied to a body, its velocity always remains less than c.

## Why does photon have zero rest mass?

But according to special relativity, light ALWAYS travels with the light speed c, and is NEVER at rest. And so it has zero REST mass. which means that though photons don’t have rest mass, they do have energy and thus they have mass. The pressure they exert is due to the particle nature of light.

## How do you find the rest mass of a photon?

The proportionality constant is called the particle’s “mass” m, so that p = mv. p = mrelv . When the particle is at rest, its relativistic mass has a minimum value called the “rest mass” mrest. The rest mass is always the same for the same type of particle.