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3 years ago

Two elements are more likely to be ionically bonded when ....

Chemistry

1 answer:

larisa86 [58]3 years ago

8 0

Answer:

The correct option is: b. the elements in the material are well apart (in different sides) in the periodic table

Explanation:

Ionic bond is a type of chemical bonding that is formed by the transfer of electrons from one atom to another. It is formed between atoms having large electronegativity difference.

The more electronegative atom accepts electrons and becomes a negatively charged anion. Whereas, the less electronegative atom loses electrons and becomes a positively charged cation.

<u>Simply, an ionic bond is formed when the electrons are transferred from a metal to a non-metal, which are present on different sides of the periodic table.</u>

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Answer:

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2 years ago

A pure copper penny contains approximately 2.9×1022 copper atoms. Use the following definitions to determine how many ______ of

hammer [34]

Complete question is;

A pure copper penny contains approximately 2.9 × 10^(22) copper atoms.

1 doz = 12

1 gross = 144

1 ream = 500

1 mol = 6.022 × 10^(23)

Use these definitions to determine the following:

A) How many dozens of copper atoms are in a penny.

B) How many gross of copper atoms are in a penny

C) How many reams of copper atoms are in a penny.

D) how many moles of copper atoms are in a penny?

All answers can be rounded to two significant figures

Answer:

A) 2.4 × 10^(21) dozens

B) 2.01 × 10^(20) gross

C) 5.8 × 10^(19) reams

D) 0.048 mol

Explanation:

A) A dozen contains 12.

Therefore, 2.9 × 10^(22) copper atoms will contain;

(2.9 × 10^(22))/12 dozens = 2.42 × 10^(21).

In 2 significant figures, we have;

2.4 × 10^(21) dozens

B) 1 gross = 144

Therefore, 2.9 × 10^(22) copper atoms will contain;

(2.9 × 10^(22))/144 gross ≈ 2.01 × 10^(20) gross

C) 1 ream = 500

Therefore, 2.9 × 10^(22) copper atoms will contain;

(2.9 × 10^(22))/500 reams = 5.8 × 10^(19) reams

D) 1 mol = 6.022 × 10^(23)

Therefore, 2.9 × 10^(22) copper atoms will contain;

(2.9 × 10^(22))/(6.022 × 10^(23)) = 0.048 mol

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3 years ago

Maya, a student, performs a titration. She completes the following steps as part of her titration procedure. 1. She cleans and r

Lapatulllka [165]

The answer is No, because she did not stop adding base once the color changed. Hope that helps, don't know for sure if it's the correct answer. First, time answering this.

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3 years ago

Read 2 more answers

Select the true statements regarding resonance structure of formate.

Sphinxa [80]

Answer:

Each carbon-oxygen bond is somewhere between a single and a double bond.

Explanation:

The resonance structures are the structures which are drawn to justify the property of any compound or ion, as it cannot be described by a single structure.

The correct statement is: Each carbon-oxygen bond is somewhere between a single and a double bond.

The actual structure is a hybrid of the two resonating structures (shown in figure). Thus it is incorrect to say that he actual structure of formate is an average of the two resonance forms

It is incorrect to say that The actual structure of formate switches back and forth between the two resonance forms.

The oxygen forms one bond and has three lone pair of electrons in one structure and two bonds and two lone pair of electrons in other structure.

Thus we can say that it is again incorrect to say that 3.Each oxygen atom has a double bond 50% of the time.

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3 years ago

Which of the following situations would cause light to refract?

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When light travels from air into water, it slows down, causing it to change direction slightly

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