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BlackZzzverrR [31]
3 years ago
6

Choose all the answers that apply.

Chemistry
2 answers:
lisabon 2012 [21]3 years ago
6 0

Answer:

has properties similar to other elements in group 18

does not react readily with other elements

is part of the noble gas group

Explanation:

Argon (Ar) is in group 18. All elements in group 18 of the periodic table are called inert or noble gases. All group 18 elements have 8 valence electrons or octet (complete shell), hence these elements are chemically inert or they neither lose or gain electrons from other elements. Inert gases do not react readily with other elements. All inert gases of group 18 are similar to each other.

Amanda [17]3 years ago
5 0
Has properties similar to other elements in group 18
does not react readily with other elements
is part of the noble gas group
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In step 2 of the experimental procedure, you added 6 M sodium hydroxide to the copper(II) nitrate solut form copper(II) hydroxid
kicyunya [14]

Answer:

The solution becomes colorless and a light blue precipitate is formed.

Explanation:

When sodium hydroxide is added to copper(II) nitrate solution, a precipitate of  copper(II) hydroxide is formed.

The solution gradually becomes colorless as the light blue precipitate appears.

The reaction is complete (enough sodium hydroxide has been added) when the blue color of the solution completely disappears.

The equation of the reaction is;

Cu(NO3)2(aq) + 2NaOH(aq) → Cu(OH)2(s) + 2NaNO3(aq)

4 0
3 years ago
Which statements about complex IV are true? 1) This complex catalyzes the reduction of oxygen to water. 2) Despite consuming pro
Brrunno [24]

Answer:

The answer is 1, 2, 3 for the first question and 1,2,3 again for the second question.

Explanation:

The true statements about complex IV are:

1) This complex catalyzes the reduction of oxygen to water.

2) Despite consuming protons, this complex pumps H+ across the membrane at a rate of 4 per molecule of O2 reduced.

3) The protons flow across a gradient to the inner membrane space.

The true statemennts about complex IV are:

1) This complex catalyzes the reduction of oxygen to water.

2) Despite consuming protons, this complex pumps H+ across the membrane at a rate of 4 per molecule of O2 reduced.

3) The protons flow across a gradient to the inner membrane space.

6 0
3 years ago
Two posssible lewis structures for the molecule ch2s are given. determine the formal charge on each atom in both structures
jok3333 [9.3K]

The formal charge on each atom can be known by counting up the number of valence electrons that is present on each atom.

<h3>What is Lewis structure?</h3>

The term Lewis structure is the representation of a compound using its symbols and showing the valence electrons as dots. This question is incomplete as the Lewis structures were not shown.

If it is shown, we can know the formal charge on each atom by counting up the number of valence electrons that is present on each atom.

Learn more about Lewis structure: brainly.com/question/4144781

8 0
2 years ago
What is the pH of the solution at the endpoint of a titration
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Answer:

The pH at the equivalence point is 7.0.

Explanation:

This is because the solution only contains water and a salt that is neutral.

Since neither H+ or OH-, molecules remain in the solution.

We can conclude that the equivalence point is 7.0.

5 0
3 years ago
Each compound listed is soluble in water. For each compound, do you expect the resulting aqueous solution to conduct electrical
Strike441 [17]

Answer:

See below in bold.

Explanation:

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c) Yes this forms ions in water solution.

d) This is a sugar and does not ionise so No.

5 0
3 years ago
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