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patriot [66]
3 years ago
16

Which statements describe polyatomic ions? Check all that apply.

Chemistry
2 answers:
lilavasa [31]3 years ago
9 0

Answer:

Polyatomic ions have many charges.

Polyatomic ions attract other ions to form ionic bonds.

Polyatomic ions are made up of two or more types of atoms.

Explanation:

A polyatomic ion, also known as a molecular ion, is an ion composed of two or more covalently bonded atoms or a metal complex that can be considered as a single unit in the context of acid and base chemistry or salt formation.

Leya [2.2K]3 years ago
5 0

<em>Statements describe polyatomic ions</em>

<em>-Polyatomic ions have many charges.</em>

<em>-Polyatomic ions attract other ions to form ionic bonds.</em>

<em>-Polyatomic ions are made up of two or more types of atoms.</em>

<em></em>

<h3><em>Further explanation</em></h3>

The terms atom, ion, element and compound are used in chemistry

• Atom is the smallest material consisting of a nucleus, which contains protons, neutrons, and electrons, Atom is neutral or not charged.

An element can be an atom or element molecule. Atoms such as Ag (argon), Fe (Iron). If it is a molecule, it ‘ll be an atomic combination of the same type, for example: O₂,

• Molecules are neutral particles consisting of two or more atoms , it can be a same or different

- If it is consists of atoms of the same element is called the Element molecule, for example: N₂, Cl₂

- If it consists of different types of element atoms called Compound molecules, for example: H₂SO₄, NaOH

Monatomic molecules are single atoms that are not bound to other atoms such as elements for example  He gas (Helium) or Ag (Argon)

Diatomic molecules are molecules formed from two atoms such as elemental molecules N₂, H₂, Cl₂, F₂

• Ions are electrically charged atoms. Informing ions, an atom will release or bind electrons.

Atoms with low ionization energy (especially from groups IA or IIA in the periodic system will tend to release electrons, whereas atoms with large electron affinity energy, especially groups VIA or VIIA will tend to bind electrons

This is where ion bonds will occur because of the attractive attraction between negative ions and positive ions

Ions which are positively charged are called cations, while negatively charged ions are called anions.

Ions that have one atom are called single ions, while 2 atoms or more are called polyatomic ions

So atoms can release and bind electrons so that they form ions

Example:

single ion: Na⁺, Al³⁺, Ca²⁺, F⁻, S²⁻

poly atomic ion: SO₄²⁻, NO₃⁻, PO₄³⁻

So the correct answer is:

Polyatomic ions have many charges.

Polyatomic ions attract other ions to form ionic bonds.

Polyatomic ions are made up of two or more types of atoms.

<h3><em>Learn more</em></h3>

the atoms that belong to the same element://brainly.com/question/12758274

<h3><em>Answer details </em></h3>

Grade: Senior High School

Subject: Chemistry

Chapter: Atomic Structure

Keywords: ion, polyatomic, ionic bonds, atom

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Ne4ueva [31]
When the specific heat capacity of the water is 4.18 J/g.°C so, we are going to use this formula to get the heat for cooling three  phases changes from steam to liquid and from liquid to ice (solid) :

when Q = M*C*ΔT 

Q is the heat in J

and M is the mass in gram = 1 mol H2O * 18 g/mol(molar mass) = 18 g

C is the specific heat J/g.°C

ΔT is the change in temperature

Q = Mw *[ ( Csteam * ΔTsteam)+(Cw*ΔTw) + (Cice  * ΔT ice)]

    = 18 g * [(2.01 * (155-100°C)) + (4.18 * (100-0°C)) + (2.09 * (0 - 55 °C))]

∴Q = 7444.8 J

and when we know that the heat of fusion for water = 334J/g

and heat of vaporization for water =  2260J/g


∴Q for the two phases changes = M * (2260+334) 

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                                                      = 46692 J 

∴ Q total = 7444.8 + 46692 = 54136.8 J
5 0
3 years ago
Many elements will try to obtain ____ electrons in their outermost energy level (which is very stable) because filling it in may
VladimirAG [237]
I’m pretty sure 8 as well because elctrouns can’t hold more than that
8 0
3 years ago
Why is true about electron dot diagrams
vazorg [7]

Answer: The correct answer is the option: B. An element with eight valence electrons is chemically unstable.

Explanation:

Hello! Let's solve this!

We will analyze each of the options:

A. The group number of the element provides a clue to the number of valence electrons: it is correct, since it provides the number of valence electrons.

B. An element with eight valence electrons is chemically unstable: this is not correct, since elements with eight electrons in the valence shell cannot react because they already have the last complete shell. Therefore, they are chemically stable.

C. The points must be placed one at a time on each side of the chemical symbol: it is correct, because that is the way to make the point diagram.

D. An atom is chemically stable if all the points are paired: this is correct since this verifies that the point diagram has been done well.

We conclude that the correct answer is the option: B. An element with eight valence electrons is chemically unstable.

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7 0
3 years ago
True or false<br> Volcanoes form along mid ocean ridges where two plates move together
gladu [14]

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Explanation:

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You weigh out 0.1183 g of a complex salt to analyze for the percentage of cyanide ion in your complex salt. After dissolving the
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Answer:

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If 2 moles of MnO4 - reacts with 3 moles of CN-

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= 0.03 g

Hence, percentage of the cyanide = 0.03 g/0.1183 g * 100

= 25.35%

8 0
3 years ago
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