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 for Zeal When Motivation Is Lacking - Your Daily Prayer - May 26
Even the most seasoned believers find their daily devotion occasionally in a slump. While it’s hard to snap out of dimness on our own, thankfully, God’s Word gives us hope and help today.
Top Music Videos
Christian News
The latest news and hot topics trending among Christian music, entertainment and faith life.