Because there are three groups in substance Q and substance R, and there are three atoms in substance P.
mass
While overall ENERGY has to be conserved, MASS does not. In a nuclear reaction mass can be converted into energy so the mass of the products may be less than the mass of the reactants. The difference in mass is converted into energy as Einstein's equation describes (E=MC squared). In a chemical reaction MASS has to be conserved.
Both mass and charge
True
Its conserved during the combustion of anything - the mass of the products is always equal to the mass of the materials that react.
mass
While overall ENERGY has to be conserved, MASS does not. In a nuclear reaction mass can be converted into energy so the mass of the products may be less than the mass of the reactants. The difference in mass is converted into energy as Einstein's equation describes (E=MC squared). In a chemical reaction MASS has to be conserved.
Both mass and charge
True
Of course !
Yes. Basically, energy is ALWAYS conserved. The popular saying, that in a nuclear reaction mass is converted to energy, is plainly wrong, since both mass and energy are conserved. Read about "mass deficit", for example in the Wikipedia, for more details.
In an ordinary chemical reaction, the mass of the products is equal to the mass of the reactants. Matter is conserved.
Its conserved during the combustion of anything - the mass of the products is always equal to the mass of the materials that react.
The mass remains conserved... while it is in case of a nuclear reaction where the total mass changes... in chemical reaction there is no change in mass...
In order for a nuclear reaction to be balanced, there are quantities that must be conserved. The quantities are the atomic numbers and mass numbers of the particles involved in the reaction.
Mass is conserved in any chemical reaction. If the reaction is balanced it will show that mass is conserved. In others words the mass of the reactants will equal the mass of the products...just to add the balanced reaction should be (i didn't know if you forgot the subscripts or not): N2 + 3F2 --> 2NF3 so is it atoms only mass only mass and atoms only or moles only
In any chemical reaction the quantities that are conserved are mass and number of atoms. After the correct formula for a reactant in an equation has been written, the formula should not be changed.