Answer: option C) 3.0
Explanation:
The electronegative value of an element indicates the power of its atom to attract an electron. It ranges from 0 to 4.
Ionic bond is formed between two elements with WIDE difference in electronegative values. e.g Sodium with 0.93 and Chlorine with 3.16 forms an ionic bond in NaCl with a difference of 2.23
Thus, a difference of up to 3.0 makes an ionic bond
Both hydrogen chloride and phosgene, which is more hazardous than chloroform, are breakdown products found in the air. Colorless liquid chloroform has a nice, non-irritating aroma and a mildly sweet flavor.
<h3>How can toxicity be determined?</h3>
- Identifying hazards and evaluating dose-response are the two processes in the evaluation of toxicity. The description of the particular toxicity forms is part of the hazard identification process (neurotoxicity, carcinogenicity, etc.).
- As a single, brief encounter with immediate consequences that are frequently reversible, acute toxicity is typically thought of. The excessive consumption of alcohol and "hangovers" are one example of acute toxicity.
- The purpose of conducting toxicity tests is to gather information that will enable proper public health protection from the negative consequences of environmental agent exposures.
- Both hydrogen chloride and phosgene, which is more hazardous than chloroform, are breakdown products found in the air. Colorless liquid chloroform has a nice, non-irritating aroma and a mildly sweet flavor.
To learn more about Toxicity refer to:
brainly.com/question/19603594
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Answer:
The correct answers are electricity and discharge
Explanation:
Van de Graaff generator is an electrostatic generator. It is used for producing high voltage static electricity. It consists of a hollow metal sphere. The charges is accumulated on it from continuous motion of the belt which is made of an insulating material.
Due to polarization, the charges builds up on an object. Van de Graaf generator is an example of static charge.
Static discharge occurs when the built-up charges flow from the object. Lightning is an example of static discharge. Lightning occurs when the clouds having an opposite charges collide each other.
Therefore, building up electric charges on a Van de Graaff generator is an example of static electricity. Lightening is an example of static discharge.
<h2>
PLEASE MARK AS BRAINLEIST</h2>
Answer:
0.768g of Fe are in the tablet = 38.4% by mass of Fe in the tablet
Explanation:
The balanced redox equation of Fe²⁺ with KMnO₄ in acidic medium is:
5Fe²⁺ + MnO₄⁻ + 8H⁺ → 5Fe³⁺ + Mn²⁺ + 4H₂O
<em>Where 5 moles of Fe²⁺ react per mole of KMnO₄</em>
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The moles required of KMnO₄ are:
27.50cm³ * (1dm³ / 1000cm³) = 0.0275dm³ * (0.100mol / dm³) = 0.00275mol KMnO₄
Moles of Fe²⁺ are:
0.00275mol KMnO₄ * (5 moles Fe²⁺ / 1mol KMnO₄) = 0.01375moles of Fe²⁺
In grams (Molar mass Fe: 55.845g/mol):
0.01375moles of Fe²⁺ * (55.845g/mol) =
<h3>0.768g of Fe are in the tablet</h3>
And percentage is:
0.768g Fe / 2.000g * 100 =
<h3>38.4% by mass of Fe in the tablet</h3>
