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allochka39001 [22]
3 years ago
5

Question 9 of 10

Chemistry
2 answers:
Tomtit [17]3 years ago
6 0

Answer:

3 is the minimum of energy level that contains dorbitals

mars1129 [50]3 years ago
5 0

Answer:

A 3

Because d is 3rd orbital it is present in third shell

Explanation:

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What type of claim must be supported by scientifically valid evidence for it to be approved for use on a food label? A. Health c
Lelu [443]
Option A. Health claim

Health claim must be supported by scientifically valid evidence to be approved in using  for food label.

This is also a food guide to all consumers the food content implied by manufacturers to their products.
8 0
3 years ago
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given a density of 350 grams/cm3 and a mass of 25 grams. What is the volume using the equation involving density?​
Eduardwww [97]

0.07cm³

Explanation:

Given parameters:

Density of the body = 350g/cm³

Mass of the body = 25g

Unknown:

Volume of the body = ?

Solution:

Density is the amount of substance contained in a volume of body. It is expressed as:

    Density = \frac{mass}{volume}

Since the unknown is volume, we make it the subject of the expression;

   Volume = \frac{mass}{density}

 Volume = \frac{25}{350} = 0.07cm³

learn more:

Density brainly.com/question/2690299

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6 0
3 years ago
What process takes place when hydrogen-3 and hydrogen-2 combine to form
vazorg [7]

Answer:

A alpha decay

hope this helps you :D

4 0
3 years ago
Copper is plated on zinc by immersing a piece of zinc into a solution containing copper(II) ions. In the plating reaction, coppe
Aloiza [94]

Hey there!:

Copper plating on Zinc will occur via this simple reaction:

Cu²⁺   +   2 e⁻   ⇌   Cu

When a species gains electron, it is reduced. Its oxidation state is decreased. For example, in the above reaction Cu2+ gained 2 electron to get reduced to Cu. Its oxidation state changed from +2 to 0. Hence it is a reduction reaction.

So, the correct answer is  :

The copper II ions  gain two electrons and are reduced.

Answer B

Hope this helps!

8 0
3 years ago
Predict the outcome of this reaction. Balancing doesn't matter. <br><br> Mg + H2O --&gt;
ELEN [110]

Answer:

MgO + H₂

Explanation:

The products of reaction is MgO  and hydrogen gas.

This is a single displacement reaction.

In this reaction, the possibility of the reaction is determined by position of the atoms on the activity series.

 Mg is higher than H on the activity series, so it is more reactive and it then displaces the hydrogen in water;

            Mg + H₂O → MgO + H₂

7 0
2 years ago
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