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Naily [24]
3 years ago
8

which of the following correctly shows a prefix used in naming a binary molecular compound along with its corresponding number?

Penta-,6; hexa-,4; deca-,8; nona-,9
Chemistry
2 answers:
anyanavicka [17]3 years ago
4 0

Answer : The correct option is, nona-, 9

Explanation :

The naming of binary molecular compound is given by:

(1) The first element or less electronegative element is written first.

(2) The second element or more electronegative element is written then, and a suffix is added with it. The suffix added is '-ide'.

(3) If atoms of an element is greater than 1, then prefixes are added which are 'mono' for 1 atom, 'di' for 2 atoms, 'tri' for 3 atoms and so on..

(4) The prefixes used as 'meth' for 1, 'eth' for 2, 'prop' for 3, 'but' for 4, 'pent' for 5, 'hex' for 6, 'sept' for 7, 'oct' for 8, 'nona' for 9 and 'deca' for 10.

Hence, the correct option is, nona-, 9

aivan3 [116]3 years ago
3 0
The answer is Nona-9, penta- is five, hexa- is six, and deca- is ten.
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Answer:

The mass percentage composition of nitrogen in the sample of the cleaning detergent is approximately 16.78%  

Explanation:

The given mass of the sample of the cleaning detergent, m₁ = 20.5 g

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The molar mass of NH₄OH = 35.04 g/mol

The molar mass of nitrogen, N = 14.01 g/mol

Therefore, the mass, m₃ of nitrogen, N, in 8.61 g of ammonium hydroxide, NH₄OH, is found as follows;

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The percentage composition of nitrogen in the sample of the cleaning detergent, %N is given as follows;

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The percentage composition of nitrogen, %N ≈ 16.78%.

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3 years ago
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