Do elements always combine in the same proportions by mass when they form a given compound?

Question

Question

science chemistry

Answer 1

Answer #1

yes , for given compound always elements combines in the same proportions by mass

for example

H2O

always 16 g O combines with 2 g H

O : H

16 : 2

8 : 1 ratio it will not change.

Answer 2

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