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Dalton's law of multiple proportions meant that two elements combine in simple whole number ratios.

Dalton's law of multiple proportions meant that two elements combine in simple whole number ratios.

Learn English phrasal verbs related to actions around the house

Phrasal Verbs around the House Welcome! Tell us about yourself! RECENT GUEST POSTS Prepositions of Time .Read More Animal Idioms in English .Read More Fun and different ways to wish people ‘happy birthday’ in English Fun and