the law of conservation of mass
Count the atoms in each substance in the reactants and products. (Apex)
Chemical broooooooooooooooo niga
Chemical I think
Initial answer - (which happens to be wrong - but has been kept because it illustrates a misunderstanding that you want to avoid): has to have the same number of moles on both side because u cannot make or destroy moles mmm ... not exactly As an example, the combustion of hydrogen is 2H2 + O2 ==> 2H2O In this example you could start with 3 moles (2 moles of H2 and 1 mole of O2) and wind up with 2 moles (of H2O). The law that must be obeyed is "Conservation of mass". Using the example above, you start with 4 hydrogen atoms and 2 oxygen atoms in the reactants and end with 4 hydrogen atoms and 2 oxygen atoms in the products. The mass is conserved.
Physical - there are no chemicals involved
noo
Count the atoms in each substance in the reactants and products. (Apex)
A chemical Equation is a shorthand form of a chemical reaction. chemists use it to help them tell the substances that are present such as reactants, products, or proportions.Some equations also tell the physical state of a substance.
No, it is a chemical change. ---------------------------------- Yes, it is a physical change because this change not involve a chemical reaction but a nuclear reaction followed by a change in the number of protons and neutrons.
Chemical broooooooooooooooo niga
A physical change
Chemical I think
Initial answer - (which happens to be wrong - but has been kept because it illustrates a misunderstanding that you want to avoid): has to have the same number of moles on both side because u cannot make or destroy moles mmm ... not exactly As an example, the combustion of hydrogen is 2H2 + O2 ==> 2H2O In this example you could start with 3 moles (2 moles of H2 and 1 mole of O2) and wind up with 2 moles (of H2O). The law that must be obeyed is "Conservation of mass". Using the example above, you start with 4 hydrogen atoms and 2 oxygen atoms in the reactants and end with 4 hydrogen atoms and 2 oxygen atoms in the products. The mass is conserved.
Physical - there are no chemicals involved
There are several things that may symbolize a chemical reaction. One of the main symbols is a chemical equation which will represent the entities in the reaction. .
Adding a base to an acid or vice versa in changing the chemical properties of that solution. In both cases you are neuralizing the solution. There might be a physical change as well, but it would depend on what chemicals where mixing. But this reaction will definitely have a chemical change.
chemical or physical WHAT?