Saliva is produced by enzymes. Enzymes helps food break down while we chew.
Answer:
Explanation:
Substance are consist of very large number of atoms, ions , molecules etc.
They can not be count in a simple way. Scientist used Avogadro number to express the large number of atoms, ions, molecules.
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.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
96.06 g of SO₄²⁻ ion = 1 mole of SO₄²⁻ ion = 6.022 × 10²³ ions of SO₄²⁻
Answer:
The group III-A is called the boron family. The general last shell electronic configuration for the group III-A elements is given as: ns2np1 . The valence shell accommodated three electrons in it.
...
Element Atomic number Valence shell configuration
In 49 5s24d105p1
Tl 81 6s24f145d106p1
Explanation:
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Explanation:
Answer: 12CO2(g) +12H2O(l)->C12H24O12(s)+12O2(g)
Once you make balancing equations don't disturb the given numbers because it is fix you need to solve by the side of the chemical name.
