What is th...
2 years ago
Experienced, Supportive Teacher|KS3 & GCSE Science & A Level Biology
This means that one of something is related to one of something else. It could be that one molecule reacts with one of another, or it could be something like a relationship between surface area and volume, where volume is 20cm3 and surface area is 20cm2. This is a 1:1 ratio too.
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