I would say it should be Einstein's famous equation of e=mc^2 which means energy =mass x the speed of light squared. With this equation Einstein showed that energy comes from a mass travelling at the speed of light squared which is a fundamental equation to explain physical phenomena.
Answer:
Explanation:
Hello!
In this case, since the mass ratio here can be computed as:
For each element forming the compound we obtain:
Best regards!
Answer:
Agriculture has been the cause of significant modification of landscapes throughout the world. Tillage of land changes the infiltration and runoff characteristics of the land surface, which affects recharge to ground water, delivery of water and sediment to surface-water bodies, and evapotranspiration.
Explanation:
Answer:
Mass = 84.82 g
Explanation:
Given data:
Number of molecules of CaSO₄ = 3.75× 10²³
Mass in gram = ?
Solution:
Avogadro number:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ molecules
3.75× 10²³ molecule × 1 mol / 6.022 × 10²³ molecules
0.623 mol
Mass in gram:
Mass = number of moles × molar mass
Mass = 0.623 mol × 136.14 g/mol
Mass = 84.82 g
