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15. A politician campaigning for election guaran tees that "every household will have 100\% pure water from every tap." Evaluate

SIZIF [17.4K]

Answer:

It is not possible to have 100 percent pure water. Therefore the success rate is not certain

Explanation:

Naturally, pure water does not exist. Water is a universal solvent. As water falls in to the earth as rain, from the atmosphere water picks up particles and minerals. Immediately water hits the ground it reacts with minerals from soil upon which it lands and then it enters into streams and rivers.

Hundred percent pure water is dangerous to life, because it has no minerals which makes it corrosive, if a hundred percent pure water enters the body it will suck off the minerals in the body.

The politician should make a promise of hundred percent pure water to the people in the industrial sector and laboratories because that is where it is useful.

6 0

2 years ago

If a mixture of gasses contain 4.5 atmospheric O2 and 785mm Hg of N2 what is the total pressure of the mixture in atm

Triss [41]

Answer:

The total pressure of the mixture is 5, 53 atm.

Explanation:

The sum of the partial pressures of the gases that make up a gaseous mixture is equal to the total pressure of said mixture, according to Dalton's law. We convert the unit of pressure in mmHg into atm:

760 mmHg----1 atm

785 mmHg----x= (785 mmHgx 1 atm)/760 mmHg=1, 03 atm

P total= P 02 + P N2

P total= 4, 5 atm + 1,03 atm=5, 53 atm

6 0

3 years ago

When might it be preferable to use direct quotations rather than summarizing or paraphrasing

Drupady [299]

Answer:

It is better to use direct quotation rather than summarizing or paraphrasing when you want to share the author's original words.

Explanation:

In writing, it is sometimes necessary to share an authors original words in order to buttress a point or validate an argument. In such cases where it is necessary to use exactly the same diction as the author in order to communicate a point clearly, it is apt to use a direct quotation rather than attempting to summarize or paraphrase the original words of the author.

Hence direct quotation is used to share an author's original words.

5 0

2 years ago

Read 2 more answers

PI3 trigonal planar trigonal pyramidal tetrahedral

EleoNora [17]

The bond polarities of a molecule of ammonia (NH₃) are polar.
The molecular shape of a molecule of ammonia (NH₃) is trigonal pyramidal.
The molecule of a molecule of ammonia (NH₃) is polar.

<h3>The types of covalent bond.</h3>

In Chemistry, there are two (2) main types of covalent bond and these include the following:

Polar covalent bond.

Non-polar covalent bond.

<h3>What is electronegativity?</h3>

Electronegativity can be defined as the ability or tendency of the atom of an chemical element to attract any shared pair of electrons.

In Chemistry, the difference in electronegativity between an atom of nitrogen (N) and hydrogen (H) causes electrons to preferentially orbit an atom of nitrogen (N), thereby, making the bond polar.

Furthermore, the molecular shape of a molecule of ammonia (NH₃) is trigonal pyramidal and the molecule of a molecule of ammonia (NH₃) is polar.

Read more on bond polarities and electronegativity here: brainly.com/question/12789975

#SPJ1

Complete Question:

Describe the characteristics of a molecule of ammonia (NH3). The Lewis structure and table of electronegativities are given.

The bond polarities are BLANK 1, the molecular shape is BLANK 2, and the molecule is BLANK 3.

blank 1 options: nonpolar, polar

blank 2 options: bent, linear, tetrahedral, trigonometry planar, trigonal pyramidal.

Blank 3 options: nonpolar, polar

3 0

1 year ago

The work-energy theorem states that the work done on an object is equal to a change in which quantity?

djverab [1.8K]

Answer :

A.) Kinetic energy

Explanation:

When work is either added to or taken away from a system, it forces the kinetic energy to change.

The work-energy theorem states : change in kinetic energy of an object is equal to the work done on the object

[ I took the quiz already on Edgenuity and received 100% ]

Hope this helped ! :)

7 0

2 years ago