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Answer:

non-metals

Explanation covalent bonds occur between elements that are far apart on the periodic table.

The types of elements that are significantly involved in covalent bonding are known as non-metals.

Covalent bonding may be defined as a type of chemical bonding that may involve the mutual sharing of electrons in order to construct electron pairs between atoms of non-metals. These electron pairs which are formed between atoms are known as bonding pairs or shared pairs.

According to the context of this question, covalent bonds are generally formed between nonmetals. While metallic bonds are the type of chemical bonds which are typically formed between the metallic element.

Another type of bonding may also be formed between elements. This type of bonding is known as Ionic bonding. This chemical bonding mat generally arises between metals and non-metals.

Therefore, the types of elements that are significantly involved in covalent bonding are known as non-metals.

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12. silver nitride

13. Sodium fluoride

14. barium

15. sodium sulfide

16. aluminium bromide

17. lithium nitride

18. potassium sulfide

19. strontium iodide

20. magnesium oxide

21. aluminium oxide

23. calcium hydride

A.  Due to the repulsion between electrons, valence electrons will be arranged as close to each other as possible.

Therefore, the correct option is A.

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Answer: a

Explanation:

Gold is known to be an element. The term that best describes 10-karat gold is that it is an homogeneous mixture.

A heterogeneous mixture is known to be a mixture that cannot be chemically sound everytime. Gold jewelry is known to be a homogeneous mixture as it is always will look good and remain unchanged for a long time.

As good example of homogeneous products, e.g  a 1-kilogram 24-karat gold bar has unique properties.

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Answer:

160.3 g S

Explanation: hope that helps

Answer:

Sodium has 11 protons and Magnesium has 12. The way that the periodic table is set up doesn't allow for any elements to be in between. The element would have to have 11.5 protons, which is impossible

Structure of periodic table is designed in a way that successive elements have difference of 1 electron and proton as sodium and magnesium have 11 and 12 protons respectively there is no space for any other element.

Periodic table is a tabular arrangement of elements in the form of a table. In the periodic table, elements are arranged according to the modern periodic law which states that the properties of elements are a periodic function of their atomic numbers.

It is called as periodic because properties repeat after regular intervals of atomic numbers . It is a tabular arrangement consisting of seven horizontal rows called periods and eighteen vertical columns called groups.

Elements present in the same group have same number of valence electrons and hence have similar properties while elements present in the same period show gradual variation in properties due to addition of one electron for each successive element in a period.

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The osmotic pressure of the glucose solution is 21.49 atm.

From the question given above, the following data were obtained:

π = iMRT

π = 1 × 0.85 × 0.0821 × 308

π = 21.49 atm

Therefore, the osmotic pressure is 21.49 atm

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Answer:

On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.

Explanation:

Answer:

on the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.

Explanation:

hope this helps!

Answer:

Historically, wood was the main source of U.S. energy until the mid-1800s and was the only commercial-scale renewable source of energy in the United States until the first hydropower plants began producing electricity in the 1880s.

The Advantages of Renewable Energy Resources-A Fuel Supply That Never Runs Out.Zero Carbon Emissions.Cleaner Air and Water.Disadvantages of Renewable Energy-he Electricity Generation Capacity is Still Not Large Enough.Renewable Energy Can be Unreliable.

First, we need to take advantage of the world's abundant natural gas resources and reduce coal consumption;

Second, governments must support development of carbon capture and storage technology to make fossil fuel use cleaner;

Explanation:

Answer:

A substance may undergo phase change from a solid to a gas or from a gas to a solid if the temperature it is exposed to is changed very quickly. If the temperature around a solid is raised very quickly, it can sublimate, or phase change from a solid to a gas without existing as a liquid.

Explanation:

Substance A is less soluble in water than Substance B.

In this experiment, we can see that small amount of substance A is present at the bottom of the beaker which means that some amount of substance A does not dissolve in water.

While on the other hand, no substance B is present at the bottom of beaker which shows that all the substance B is dissolved in water so we can made a conclusion that Substance A is less soluble in water than Substance B.

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magnets attract everything with metal inside of it

Answer: magnets attract everything with metal inside of it

Explanation:

The statement that compounds have the same physical and chemical properties as the elements they are made from is false.

Compounds are substances formed when two or more elements are chemically combined together.

For example, water is a chemical compound formed when hydrogen and oxygen are chemically combined in a ratio of 2 to 1.

Therefore, the statement that compounds have the same physical and chemical properties as the elements they are made from is false.

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Answer:

the correct answer is D because the heat causes the molecules to speed up

Answer:

matter should be the answer

Explanation:

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Answer:

matter because matter makes up everything in the world EVERYTHING like this computer ri am typing on? matter. what ever device you are using to view this? matter. everything is made of matter. matter is starting to sound weird now so I'm gonna stop saying it and this is the end of the answer remember THAT ANSWER IS MATTERR!!!!!

Answer:

Mitosis: Cell division in Asexual Reproduction. 2 Daughter cells exactly like the parent. Heredity is passed to offspring: 100% DNA from 1 parent. Meiosis: Cell division in Sex Cells during Sexual Reproduction.

Explanation:

Answer:

The attraction of the Oxygen for an electron as measured by the electronegativity of Oxygen is 3.5 which is higher than the electronegativity of Hydrogen at 2.2

Explanation:

Answer:

+1

Explanation:

your removing a electron and it was already balanced

Answer:

The poster should include:

 TITLE: Creative name of superhero.

 DESCRIPTION OF ELEMENT SUPERHERO (2 PARAGRAPHS):

This section should include a brief description of how your superhero acquired, used, or lived

with their element power. You may want to describe where does your superhero element lives

(where in nature can it be found). What are his/her superpowers? Does your superhero

element have a hideout? What are his/her strengths? What is his/her weakness? Who is

his/her arch nemesis (evil super villain)? What kind of super suit does your superhero have?

 5 FACTS:

This section should include at least 5 fun facts about your element. You can choose to

describe facts that illustrate where your element is found in nature. You may also wish to

describe what is your element used for. You may address what are characteristics of your

element or what are important uses of your element. For example, can your element be made

into something useful or can your element combine with other elements to make something

totally different.)

 ATOMIC DRAWING

Include the atomic structure of your element with correct labeling of its protons neutrons,

electrons. Make sure your drawing has the correct number of protons, neutrons, electrons.

 DRAWING OF YOUR ELEMENT SUPERHERO

This section should include a drawing (in color) of your Element Superhero on a clean sheet of

WHITE paper. You may want to draw your Element Superhero fighting his nemesis (super

villain). Or you may want to draw your Element Superhero using his special powers.Explanation:

This problem is providing two reduction-oxidation (redox) reactions in which the oxidized and reduced species can be identified by firstly setting the oxidation number of each element:

Reaction 1: 2K⁺I⁻ + H₂⁺O₂⁻  ⇒2K⁺O⁻²H⁺ + I₂⁰

Reaction 2: Cl₂⁰ + H₂⁰ ⇒ 2H⁺CI⁻

Next, we can see that iodine is being oxidized and oxygen reduced in reaction #1 and chlorine is being reduced and hydrogen oxidized in reaction #2 because the oxidized species increase the oxidation number whereas the reduced ones decrease it.

In such a way, the correct choice is C.

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Single-displacement reaction occurs when aluminum reacts with copper nitrate.

Single-displacement reaction is the type of chemical reaction that occurs when aluminum (Al) reacts with copper nitrate (Cu(NO3)2). In this type of reaction, aluminum takes the place of copper and produced aluminium nitrate.

Aluminum does not react with potassium nitrate (KNO3) although it reacts with copper nitrate because potassium nitrate (KNO3) is a stable compound which held each other very tightly so we can conclude that Single-displacement reaction occurs when aluminum reacts with copper nitrate.

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Answer

hydrogen

Explanation:

Answer:

A solid has definite volume and definite shape, a gas has neither definite volume nor definite shape, and as said in the question, a liquid has a definite volume but no definite shape.

What this means is that even though liquid molecules can slide past each other and move to fill up the space they are in (this means that liquids have no definite shape), they keep their volume. That is, liquids have consistent, unchanging volume.

Hopefully that's helpful! :)

Answer:

The products of the combustion of hydrocarbons are carbon dioxide and water. Many hydrocarbons are used as fuel because their combustion releases very large amounts of heat energy.

Answer:

The products of the combustion of hydrocarbons are carbon dioxide and water. Many hydrocarbons are used as fuel because their combustion releases very large amounts of heat energy.

Explanation:

Answer:

The pressure of 16.25 moles of methane = 40 atm

Explanation: there you go

Answer:

wwwwwwwwww

Explanation:

Answer:

Word equation: Potassium chlorate → Potassium chloride + Oxygen

Chemical equation: KClO₃ → KCl + O₂

Explanation:

This is decomposition reaction so there will only be one reactant, which is potassium chlorate.

The chemical equation will be:

KClO₃ → KCl + O₂

The balanced equation would be:

2KClO₃ → 2KCl + 3O₂

The word equation will be:

Potassium chlorate → Potassium chloride + Oxygen