What’s different about ionic bonding and covalent bonding ? (Help I need the answer ASAP)

1 answer:

3 0

The two main types of chemical bonds are ionic and covalent bonds. An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms.

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What is the mass of 3.6 x 1024 atoms of Zinc (Zn)?

AlladinOne [14]

Answer is: mass od zinc is 392,28 g.
N(Zn) = 3,6·10²⁴.
n(Zn) = N(Zn) ÷ Na.
n(Zn) = 3,6·10²⁴ ÷ 6·10²³ 1/mol.
n(Zn) = 6 mol.
m(Zn) = n(Zn) · M(Zn).
m(Zn) = 6 mol · 65,38 g/mol.
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Na - Avogadro number.
n - amount of substance.
M - molar mass.

7 0

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3 years ago

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Solve first for the number of moles of sodium given that the mass is 2500 g by dividing the given mass by the molar mass of sodium.
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You are presented with a mystery as part of your practical experiment. You have a solution of Pb(NO3)2

shusha [124]

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What are the molarity and the normality of a solution made

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Explanation:

It is known that molarity is the number of moles present in a liter of solution.

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