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Nastasia [14]
3 years ago
14

Which element in Period 3 has the largest atomic radius?

Chemistry
1 answer:
horsena [70]3 years ago
6 0

Answer:

sodium

Explanation:

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Chemistry question<br>label them<br>reactants, products,activation energy etc​
sertanlavr [38]

In the illustration A would be the reactants and E would be the products. B would be the activation energy (Ea), C would be the potential energy of reactants, F would be the potential energy of products, and D would be the potential energy change.

<h3>Energy Diagram</h3>

The energy diagram shows the energy states of the components of reactions.

From the diagram, A being the reactant becomes E, the product. The minimum energy that A needs to overcome to arrive at the product (activation energy) is B.

The energy state of the reactant A before becoming the product is C while that of the product E is F. The difference in the energy state of A and E is D.

More on energy diagrams of reactions can be found here: brainly.com/question/12798587

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2 years ago
A librarian is interested in the numbers of books that visitors check out from the library. She examines the checkout records of
miss Akunina [59]

Answer:

The answer B

Explanation:

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3 years ago
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How many moles of oxygen are produced when 8 moles of Al are produced?
vichka [17]
<span>how many molesof oxygen are produced when 8 mols of Al are produced? it is 6</span>
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What does the little ‘3’ in 2NH3 mean?
Svet_ta [14]

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It determines the number of molecules

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The titration of Na2CO3 with HCl has the following qualitative profile: a. Identify the major species in solution at points A-F.
exis [7]

Answer:

Answer is explained in the explanation section below.

Explanation:

Solution:

Note: This question is incomplete and lacks very important data to solve this question. But I have found the similar question which shows the profiles about which question discusses. Using the data from that question, I have solved the question.

a) We need to find the major species from A to F.

Major Species at A:

1. Na_{2} CO_{3}

Major Species at B:

1. Na_{2} CO_{3}

2. NaHCO_{3}

Major Species at C:

1. NaHCO_{3}

Major Species at D:

1. NaHCO_{3}

2. H_{2}CO_{3}

Major Species at E:

1. H_{2}CO_{3}

Major Species at F:

1. H_{2}CO_{3}

b) pH calculation:

At Halfway point B:

pH = pKa_{1} + log[CO_{3}.^{-2}]/[HCO_{3}.^{-1}]

pH = pKa_{1} = 6.35

Similarly, at halfway point D.  

At point D,

pH = pKa_{2} + log [HCO_{3}.^{-1}]/[H2CO_{3}]

pH = pKa_{2} = 10.33

8 0
3 years ago
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