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kolezko [41]
3 years ago
11

16. A particular organ in the human

Chemistry
1 answer:
Maru [420]3 years ago
8 0
This system is the Endocrine system
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Why less electro negative elements are taken as central atom​
sladkih [1.3K]

Answer:

The least electronegative elements in the center of lewis structures because an atom in the central position shares more of its electrons than does a terminal atom. Atoms with higher electronegative are generally more reluctant to share their electrons.

Explanation:

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A 25. 0-ml sample of 0. 150 m hydrocyanic acid is titrated with a 0. 150 m naoh solution. What is the ph beforeany base is added
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A hydrate of CoCl2 has a mass of 17.40 g before heating. After heating, the mass of the anhydrous compound is found to be 10.27
melisa1 [442]

Mass CoCl2 = 10.27 g
moles CoCl2 = 10.27 g/ 129.839 g/mol=0.07910

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0.396/ 0.07910=5

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moles Ca = 1.10
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3 years ago
1. Compare and contrast the characteristics of metals and nonmetals.
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1.Metals

These are very hard except sodium

These are malleable and ductile  pieces

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Non-metals

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2. The electrochemical series helps to pick out substances that are good oxidizing agents and those which are good reducing agents.In an electrochemical series the species which are placed above hydrogen are more difficult to be reduced and their standard reduction potential values are negative.

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4. The common application of indicators is the detection of end points of titrations. The colour of an indicator alters when the acidity or the oxidizing strength of the solution, or the concentration of a certain chemical species, reaches a critical range of values.

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3 years ago
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Which situation describes a reaction with a percentage yield of 100%?
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Answer:

Explanation:

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