Class9_Science_Atoms and Molecules
In any chemical reaction, the total mass of the substance before and after the reaction is the same although its matter undergoes a physical change.
"In a chemical substance the elements are always present in definite proportions by mass".
Law of Multiple Proportions
When two elements combine to form different compounds, then the weight of one is constant and the other has a simple ratio.
"In a chemical substance the elements are always present in definite proportions by mass".
Law of Multiple Proportions
When two elements combine to form different compounds, then the weight of one is constant and the other has a simple ratio.
Today's Devotional
A Prayer to Believe That Nothing Is Too Hard for the Lord
When we begin listing all God has done, it helps remind us that, truly, there is nothing too hard for Him.
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