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2 years ago

Which best explains why water has a much higher boiling point than would otherwise be predicted?

Chemistry

2 answers:

My name is Ann [436]2 years ago

7 0

Answer: water from strong hydrogen bonds

Explanation:

ikadub [295]2 years ago

5 0

My guess is that water is a liquid and not a solid, or a gas. It can be heated by us or by the suns rays, which if done by the suns rays the water azorbs the light rising the temp to the point of boil which then makes the water evaporate into the air, and thus making cloud in the sky that we see all the time thus when the clouds become big enough it begins to rain. ( also called the water cycle)

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What do the valence of electrons tell you?

9966 [12]

Answer:

valence electrons are the electrons that are located in the outermost electron shell of an element. Knowing how to find the number of valence electrons in a particular atom is an important skill for chemists because this information determines the kinds of chemical bonds that it can form and, therefore, the element's reactivity

Explanation:

4 0

2 years ago

A species that is isoelectronic with the nitrate ion and hence would have the same shape is [1] [2] [3] [4] [5] sulphur trioxide

Bumek [7]

Answer:

[1] sulphur trioxide

Explanation:

Isoelectronic species have the same number of valence electrons.

Valence electrons in nitrate (NO₃⁻):

5e- (N) + (3 x 6e-)(3xO) + 1e- (charge) = 24e-

Valence electrons in sulphur trioxide (SO₃):

6e- (S) + (3 x 6e-)(3xO) = 24e-

Valence electrons in sulphite (SO₃²⁻):

6e- (S) + (3 x 6e-)(3xO) + 2e- (charge) = 26e-

Valence electrons in phosphine (PH₃):

5e- (P) + (3 x 1e-)(3xH) = 8e-

Valence electrons in water (H₂O):

6e- (O) + (2 x 1e-)(2xH) = 8e-

Valence electrons in chlorite (ClO₂⁻):

7e- (Cl⁻) + (2 x 6e-)(2xO) + 1e- (charge) = 20e-

The only species isoelectronic with nitrate is sulphur trioxide. Both have trigonal planar geoemetry.

8 0

3 years ago

Which of the following lists the characteristics that all matter has?

motikmotik

It has mass and takes up space is correct.

5 0

3 years ago

Read 2 more answers

Calculate the hydroxide ion concentration [OH-] for a solution with a pH of 6.10

nalin [4]

There are different formula you need to keep in mind when solving for [OH-]

Given that pH = 6.10

pH + pOH = 14

6.10 + pOH = 14

pOH = 7.9

[OH-] = 10^(-pOH)

[OH-] = 10^(-7.9)

[OH-] = 0.000000013

[OH-] = 1.3 x 10^-8

<h2><u>Answer: [OH-] = 1.3 x 10^-8</u></h2>

4 0

2 years ago

Carboplatin (C6H12N2O4Pt) is a platinum-containing compound that is used to treat certain forms of cancer. This compound contain

givi [52]

Answer:

The answer to your question is: $ 35.6

Explanation:

C₆H₁₂N₂O₄Pt

Platinum = 52.5 %

Price = $1047 / troy ounce

cost of platinum = ? of 2 g

1 troy ounce = 480 grains

1 grain = 64.8 mg

Process

Get 52.5 % of 2 g

2 g ----------------- 100 %

x ----------------- 52.5%

x = (52.5 x 2) / 100

x = 1.05 g

1 g --------------------- 1000 mg

1.05 g ---------------- x

x = 1050 mg of Pt

1 grain ---------------- 64.8 mg

x --------------- 1050 mg

x = 16.2 grains

480 grains ---------------- 1 troy ounce

16.2 grains ---------------- x

x = (16.2 x 1) / 480

x = 0.034 troy ounce

$ 1047 ------------------ 1 troy ounce

x ------------------- 0.034

x = (0,034 x 1047) / 1

x = $ 35.6

3 0

3 years ago