Chemistry

4 April, 21:32

Which mass law (s) is/are demonstrated by the observation that a sample of potassium chloride from chile contains the same percent by mass of potassium as one from poland?

a. law of conservation of mass

b. law of definite composition

c. law of multiple proportions

d. laws of conservation of mass and definite composition

e. laws of conservation of mass and multiple proportions?

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