Answer:
Applications of a ph scale
It can be used in a wide variety of applications
- ph scale can be used in agriculture
- it can be used in treatment of waste water
- it can be used in industrial processes
- it can be used in environmental monitoring
- it can also be used in researches and development
Explanation:ph scale is a used to measure the acidity or alkalinity of a given solution
Answer:???????????????????????? huh?
Explanation:
Emerald can be described as a transparent, green coloured gem stone made up of mineral beryl together with trace amount of chromium or sometimes vanadium having chemical formula as
.
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What is the
significant of Emerald ?</h3>
Through time, the emerald has been known as a symbol of truth and love.
In ancient Greece and Rome, emerald was said to be the gemstone of the goddess Venus, purveyor of love and hope.
On the other side of the world, emeralds were revered by the Incas and believed by the Egyptians to be a source of eternal life.
Learn more about Gem stones here ;
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N₂ + 3 H₂ → 2 NH₃
number of moles of N₂ = 38 g / 28 g/mol = 1.357 mol
1 mole of N₂ gives 2 moles of NH₃
1.357 mol of N₂ will give ?? mole NH₃
= 2 x 1.357 = 2.7 mol NH₃
The answer is 4.0 moles of magnesium
because...
..
...4.0mol Makmol O2 =3.0mol O2