Question

please abswer this question vwry urgent tommarow my exam​

Answer 1

please say If it is correct or not...am not sure about this ..

Answer 2

law of conservation of mass states that mass can neither be created nor be destroyed but can transfer from one form to another form

given that

(10g) NaSO4 +(5g) BaCl2 ====> (8g)BaSo4 +(xg)NaCl

so 10 +5 = 8 +x

x = 7g

show the sodium chloride is of 7 grams

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