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Elena L [17]
3 years ago
6

Wich of the following is the best definition of and independent variable

Chemistry
1 answer:
QveST [7]3 years ago
7 0

Answer: brainly.com/question/17763931

Explanation:

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The molarity of an aqueous solution of NaCl is defined as the
zlopas [31]
Molarity = number of moles / volume in liters solution

Answer (4)

hope this helps!
4 0
3 years ago
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Balance this chemical equation. Choose "blank" for the box if no other coefficient is needed. Writing the symbol implies "1." H2
ololo11 [35]

4H202->2H2O+O2

Hope this helps mate good luck on whatever ur doing

6 0
3 years ago
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Complete the sentences to identify the trend in first ionization energies as one proceeds down the group 7A elements and explain
Harrizon [31]

Answer:

a)decrease

b)increase

c)smaller

d)smaller

Explanation:

Ionization energy decreases down the group due to increase in the atomic radius. The distance between the outermost electron and the nucleus increases hence the nuclear attraction for the outermost electrons become smaller and the ionization energy also become smaller as electrons are now easily removed from the outermost shell.

Hence the group of answer choices provided above.

3 0
4 years ago
How many additional electrons does this atom of oxygen need in its valence shell to satisfy the octet rule?
vfiekz [6]

Answer:

2

Explanation:

cause it is what it is :> mark me brainlest

5 0
4 years ago
What word or two-word phrase best describes the shape of the hydrogen cyanide ( hcn ) molecule?
elena-14-01-66 [18.8K]

Answer : Linear

Explanation : Hydrogen Cyanide (HCN) when drwan in the Lewis diagram shows carbon atom at the center with no lone electron pairs.

The carbon and nitrogen atoms are bonded through a triple bond which counts as "one electron pair".

The molecule has two electron pairs in all and appears to be linear.

Also, according to the VSEPR theory; the electron clouds on atoms around the carbon will try to repel each other.

They will get pushed apart, which gives HCN molecule a linear molecular geometry or shape.

The bond angle that is developed will be 180 degrees since it has a linear molecular geometry of HCN. The hybridisation observed in this molecule is SP.

5 0
4 years ago
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