Which best describes the trends in electronegativity on the periodic table?

Answers

Answer 1

Answer:

The correct answer is:

Electronegativity increases up and to the right

Explanation:

Electronegativity, logo χ, is a chemical property that explains the trend of an atom to attract a shared pair of electrons towards itself.As you move from left to right across the periodic table, electronegativity increases, and as you move down the table electronegativity decreases.

Answer 2

Answer: Electronegativity is higher on the right side of the periodic table, such as the noble gasses. There electronegativity is around 3.0 and 4.0 while the left side has electronegativity ranging from .7 to 1.0

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Besides water, what is the product of a Neutalization Reaction between HClO3 and Sr(OH)2?a. SrClO3
b. Sr-1(ClO3)+2
c. Sr2CIO3
d. Sr(ClO3)2

Answers

Answer:

The answer to your question is letter d. Sr(ClO₃)₂

Explanation:

Data

Reactants HClO₃ and Sr(OH)₂

This is a neutralization reaction because the reactants are a base (Sr(OH)₂) and an acid (HClO₃).

The products in a neutralization reaction are always water and a salt.

Balanced chemical reaction

Sr(OH)₂ + HClO₃ ⇒ H₂O + Sr(ClO₃)₂

Food is shipped thousands of miles throughout our country using various types of transportation such as trucks, planes, and boats. Food availability would be most affected by a shortage in which of the following energy sources? Coal Natural gas Petroleum Water power

Answers

The correct answer for this would be the third option: PETROLEUM. So when food is shipped thousands of miles throughout our country using various types of transportation such as trucks, planes, and boats, food availability would be most affected by a shortage of PETROLEUM. Petroleum is the energy that is used to operate trucks, planes and boats. Hope this answers the question.

Answer: Petroleum

Explanation:

Petroleum is a fossil fuel. It is also called as crude oil. It is a yellowish black liquid that can be found beneath the earth crust. It is a highly combustible fuel and generates lot of heat energy necessary for running the vehicle. It is the most commonly used fuel for shipping, and road transportation of goods and services. It helps the vehicles to run for long and covering the large distance.

The food availability would be affected by the shortage in absence of petroleum.

Given the reaction:Ba(OH)2(aq) + H2SO4(aq) -->BaSO4(s) + 2 H2O(l) + energy
As the barium hydroxide solution is added to the solution of sulfuric acid, the electrical conductivity of the acid solution decreases because the
(1) volume of the reaction mixture increases
(2) temperature of the reaction mixture decreases
(3) concentration of ions increases
(4) concentration of ions decreases

Answers

As the barium hydroxide solution is added to the solution of sulfuric acid, The conductivity would decrease because the concentration of ions decreases. Thus option 4 is correct.

what is conductivity ?

Electric conductivity can be defined as the measure of the mechanism of electric current moves within a substance, greater the electrical conductivity within the material higher will be the current density.

The electrical conductivity is the ability of a substance that involve in conduction of electricity, the conductivity of a material is important for example the wire conductors need to let current to flow as easily.

When barium hydroxide dissolve in a solution called sulphuric acid, the Barium ions replace the hydrogen ions and an insoluble solid doesn't contribute ions.

Thus option 4 is correct.

Learn more about conductivity, here:

brainly.com/question/12136944

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The conductivity would decrease because the concentration of ions decreases.

As barium hydroxide, a solution is added to sulphuric acid, the Barium ions replace the hydrogen ions to form a precipitate. An insoluble solid doesn't contribute ions and as such the forming of the solid barium hydroxide would mean a decrease in the concentration of the ions.

Which isotope is used to date ancient artifacts such as fossils

Answers

Answer: Carbon-14 isotope is used to date ancient artifacts such as fossils.

Explanation:

To determine the age of ancient artifacts such as fossils, we use radiocarbon dating process.

In this process, a naturally occurring radioisotope of carbon which is Carbon-14 is used. This isotope is generally used because this isotope gets constantly created in the atmosphere with the interaction of cosmic rays with the nitrogen present in atmosphere.

Hence, an isotope of carbon which is Carbon-14 is used to determine the age of ancient artifacts such as fossils.

dating:
this dating is called CARBON 14 DATING...because Carbon 14 is the isotope used to date fossils...
Also Potassium 40 is also used in some cases....

NO, because dental varnish interferes with the bonding and setting reaction of composite resins and glass ionomer restorations the use of varnish is contraindicated with these materials.

Answers

Answer:

Explanation: NO, because dental varnish interferes with the bonding and setting reaction of composite resins and glass ionomer restorations the use of varnish is contraindicated with these materials.

Can someone please take a look at this lab.? And show answers with work? Thanks! I tried it but I'm pretty sure I did it all wrong.

Answers

Answer: B

Explanation:

All of your answers look wrong

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