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the total mass of the reactants equals the total mass of the products
true
Is this true or false
That is false. Assuming an exothermic reaction, e.g., a fusion of hydrogen to helium:The total amount of mass before and after the reaction is the same. (Any energy leaving the atom has a mass equivalent.)The total amount of energy before and after the reaction is the same. (The energy was there previously, in the form of potential energy).
true
The truth about the total amount of O2 and CO2 is that they have have the diffrent level of chaning over time.
no.because hypotheses you want to test if it is true or not
TURE
No, even pregnancy tests have errors sometimes.
true
Yeah. sure, why not?
The total energy doesn't change
True
True
yes it is true
the total mass of the reactants equals the total mass of the products
That's true only if the entire travel from start to finish is in a straight line.