AcutelyGauche AcutelyGauche

24-10-2016
Chemistry

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Help me with 15 16 17 and 18 please thank you so much

Help me with 15 16 17 and 18 please thank you so much class=

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jadephil07 jadephil07

24-10-2016

15.c
16.the law of conservation of mass state that mass in a isolated system is niether created or destroyed.
17.you can prove that dissolving salt is a physical change by evaporating the water to separate the two.

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Jonathanmiller Jonathanmiller

24-10-2016

I Know 15. Answer Is D.

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