Class9_Science_Atoms and Molecules
786
Mar 11, 2013
21:10
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.
law of definite proportions :
"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.
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.
law of definite proportions :
"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 Prioritize Laughter - Your Daily Prayer - June 11
When we’re able to laugh at our circumstances or ourselves, we’re less likely to be crushed by unexpected difficulties or challenges.
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Today's Devotional
A Prayer to Prioritize Laughter - Your Daily Prayer - June 11
When we’re able to laugh at our circumstances or ourselves, we’re less likely to be crushed by unexpected difficulties or challenges.
