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Vlada [557]
3 years ago
9

Forming ionic bonds 1. a chemical bond that forms when electrons are transferred from one atom to another is a(n) 2. charged par

ticles that form when atoms gain or lose electrons are 3. a transfer of electrons between atoms changes the number of electrons in an atom, but the number of stays the same. 4. why is an atom neutral? 5. why are ions charged particles and thus no longer neutral?
Chemistry
1 answer:
ser-zykov [4K]3 years ago
4 0
1.) ionic bond

2.)ions

3.) the number of protons stay the same. (Wasn’t sure what it was asking. )

4.)an atom is neutral because it has the same amount of protons and neutrons

5.)because ions either have more positive protons or more negative electrons making the ion either positive or negative
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A substance contains just copper and oxygen analysis shows that a 12.5g sample contains 11.1 of cooper and 1.4 of oxygen what is
oksian1 [2.3K]

Answer:

The formula of the compound is Cu₂O.

Explanation:

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

Mass of compound = 12.5 g

Mass of copper (Cu) = 11.1 g

Mass of oxygen (O) = 1.4 g

Formula of compound =?

The formula of the compound can be obtained as follow:

Cu = 11.1 g

O = 1.4 g

Divide by their molar mass

Cu = 11.1 / 63.5 = 0.175

O = 1.4 / 16 = 0.0875

Divide by the smallest

Cu = 0.175 / 0.0875 = 2

O = 0.0875 / 0.0875 = 1

Therefore, the formula of the compound is Cu₂O.

6 0
3 years ago
Which represents the correct electron distribution of a transition element in the ground state?
Phoenix [80]
I believe both C) and D) are correct, because both have enough electrons to show that the element has enough protons to be a transition metal, and both elements seem to have an electron configuration that exists in the ground state. We may need more information.
5 0
3 years ago
Given the reactions,
enot [183]

The enthalpy change of the reaction is <u>-1347.8 kJ.</u>

<h3>What is the enthalpy change, ΔH, of the reaction?</h3>

The enthalpy change, ΔH, of the reaction is calculated from Hess's law of constant heat summation as follows:

Hess's law states that the enthalpy change of a reaction is the sum of the enthalpies of the intermediate reaction.

Given the reactions below and their enthalpy values;

1. X (s) + 12 O₂ (g)⟶ XO (s) ΔH₁ = −850.5 kJ

2. XCO₃ (s) ⟶ XO (s) + CO₂ (g) ΔH₂ = +497.3 kJ

The enthalpy change, ΔH, of the reaction whose equation is given below, will be:

X (s) + 12 O₂ (g) + CO₂ (g) ⟶ XCO₃ (s)

ΔH = ΔH₁ - ΔH₂

ΔH = − 850.5 kJ - (+497.3 kJ)

ΔH = -1347.8 kJ

Learn more about enthalpy change at: brainly.com/question/14047927

#SPJ1

7 0
2 years ago
Question - Complete and balance the following chemical equations:
Mekhanik [1.2K]
Answer is because
Please give feedback
6 0
3 years ago
The periodic table organize elements based on
e-lub [12.9K]
The elements are arranged by their atomic number but are also grouped by what type of element they are.

For example, metals, non metals, metalloids, and noble gasses will be grouped with elements that match them.

Hope this makes sense!


7 0
4 years ago
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