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Ipatiy [6.2K]
3 years ago
13

Which is a binary ionic compound? A.MgCl2 B.C6H12O6 C.CO2 D.PO43- E.CH4

Chemistry
2 answers:
SSSSS [86.1K]3 years ago
8 0

The answer is A MgCI2

natali 33 [55]3 years ago
8 0

Answer : The correct option is, (A) MgCl_2

Explanation :

Binary ionic compound : It is a type of compound that is made up of the ions of the two different elements in which one element is a metal and another element is a non-metal.

From the given options, option (A) MgCl_2 is a binary ionic compound because in this compound Mg is a metal which combine with the a non-metal element chlorine.

While the other options are the covalent compounds that is formed by the combination of non-metal and non-metal elements.

Hence, the MgCl_2 is a binary ionic compound.

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How many molecules are in 6.0g of sodium phosphate?
Phantasy [73]

Answer:

2.2 x 10²² molecules.

Explanation:

  • Firstly, we need to calculate the no. of moles in (6.0 g) sodium phosphate:

<em>no. of moles = mass/molar mass </em>= (6.0 g)/(163.94 g/mol) = <em>0.0366 mol.</em>

  • <em>It is known that every mole of a molecule contains Avogadro's number (6.022 x 10²³) of molecules.</em>

<em />

<u><em>using cross multiplication:</em></u>

1.0 mole of sodium phosphate contains → 6.022 x 10²³ molecules.

0.0366 mole of sodium phosphate contains → ??? molecules.

<em>∴ The no. of molecules in  6.0 g of sodium phosphate</em> = (6.022 x 10²³ molecules)(0.0366 mole)/(1.0 mole) = <em>2.2 x 10²² molecules.</em>

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3 years ago
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Explanation: See images below for explanation

8 0
3 years ago
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water is also binary because it is also made up of only two elements hydrogen and oxygen.

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7 0
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I need all solutions
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Answer:

Answer is in the attachment

6 0
3 years ago
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