Matter appears to be conserved in chemical reactions but not in nuclear reactions because:
Answer

the law of conservation of matter only applies to a limited number of chemical and nuclear reactions

the law of conservation of mass-energy applies only to nuclear reactions

in nuclear reactions, particles move too quickly to have their masses measured

in nuclear reactions the changes in mass are large enough to be detected

Question

Matter appears to be conserved in chemical reactions but not in nuclear reactions because:
Answer
		
the law of conservation of matter only applies to a limited number of chemical and nuclear reactions
		
the law of conservation of mass-energy applies only to nuclear reactions
		
in nuclear reactions, particles move too quickly to have their masses measured
		
in nuclear reactions the changes in mass are large enough to be detected

abhisar · Answer

The law of conservation of matter is only applicable for chemical reactions !

abhisar · Answer

Nuclear reactions such as fission and fusion do not obey them. the mass defect in them can be calculated by using the equation E=mc$^2$

abhisar · Answer

got it ?

wyattp17 · Answer

so a ? right because the law is limited

abhisar · Answer

Yep !