3 years ago

Which pair of elements is most likely to have similar properties?

1 answer:

6 0

Answer: this is a completer guess and i no nothing about this but i thing Sg and Bh because they both have almost the exact same numbers. like i said its a guess sorry if im wrong

Hope this helps have a nice day :)

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Answer:

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3 years ago

How many atoms are in 578g Na

borishaifa [10]

1.51 x 10²⁵atoms

Explanation:

Given parameters:

Mass of Na = 578g

Unknown:

Number of atoms = ?

Solution:

To find the number of atoms, we must first find the number of moles the given mass contains.

Number of moles = $\frac{mass}{molar mass}$

molar mass of Na = 23g

Number of moles = $\frac{578}{23}$ = 25.13moles

1 mole of a substance = 6.02 x 10²³atoms

25.13 mole of Na = 25.13 x 6.02 x 10²³atoms

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3 years ago

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Vlada [557]

Stoichiometry of the reaction:

2 KClO₃ = 2 KCl + 3 O₂
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saveliy_v [14]

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