Inorganic compounds generally do not have C-H bonds, while organic compounds do have such bonds. The distinction between inorganic and organic chemistry, however, is far from absolute.

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Here are four observations of the reactions of four metals

Here are four observations of the reactions of four metals. Metal F and G react slowly with water Metal H displaces metal G from its chloride salt solution Metal E does not react with dilute acids ...
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2answers
96 views

Dibromomethane bond angles

With regard to the above professor's claim, I disagree. Bent's rule, which states that atomic p-character is concentrated in orbitals directed toward more electronegative substituents, implies that ...
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1answer
106 views

How many Au atoms can be extracted from .250L of seawater?

Gold is present in seawater to the extent of 0.15mg/ton. Assume the density of seawater is 1.03g/ml and determine how many gold atoms could be extracted from 0.250L of seawater. (1 ton=2000lbs, ...
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23 views

Density of unknown solution?

A glass vessel weighs 20.2367g when empty and 20.3102g when filled to the etched mark with water at 4 degrees C. The same vessel was then dried and filled to the same mark with a solution at 4 degrees ...
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22 views

45.9 gram sample of borane (a compound containing only boron and hydrogen) and is 85.63% boron. What's the mass of hydrogen in this sample?

45.9 gram sample of borane (a compound containing only boron and hydrogen) that's 85.63% boron. What's the mass of hydrogen in this sample? I was just going to take 45.9 grams and multiply by .1437 ...
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2answers
47 views

What happens when KCl, K2Cr2O7, and concentrated H2SO4 reacts?

What happens when $\mathrm{KCl}$, $\mathrm{K}_2\mathrm{Cr}_2\mathrm{O}_7$, and concentrated $\mathrm{H}_2\mathrm{SO}_4$ reacts? I have no idea how to approach these questions. I'd love if anybody can ...
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1answer
33 views

Battery acid density of 1.285 grams per cubic centimeter

Battery acid has a density of 1.285 grams per cubic centimeter and contains 38% by weight H2SO4, how many grams of pure H2SO4 are contained in a liter of battery acid? I just took 1.285 times .38 and ...
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1answer
697 views

Why do we write NH3?

We've learnt that the electropositive element is written first. Then why is ammonia written as $\ce{NH3}$ ?
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2answers
55 views

Why N2O is a “laughing gas”?

It is (mostly) used as an "oxidizer" in motors and engines, I understand that much. The oxygen "oxidizes" with other chemicals, while the nitrogen returns to the air. But $\ce{N2O}$ also produces ...
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1answer
45 views

Why does urine have a smell of ammonia?

Apparently, water or $\ce{H2O}$ combines in some way with nitrogen (from the air pr elsewhere?) to form ammonia, or $\ce{NH3}$. Where/how in the body is this $\ce{NH3}$ (or whatever nitrate) produced ...
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24 views

Which statement is TRUE? [on hold]

If copper and zinc metal electrodes are used in a simple battery cell made by dipping strips of zinc and copper into their salt solutions which statement is TRUE? A. Cu(s) → Cu2+(aq) + 2e occurs on ...
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3answers
32 views

Copper is a metallic element, so it is likely to be?

Copper is a metallic element, so it is likely to be? A. Poor conductor of electricity B. A substance with a low melting point C. Malleable D. Poor conductor of heat E. An element ...
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2answers
31 views

Basic strength of Pnictogen hydride

In my textbook it is written that the order of basic strength of pnictogen hydrides is $\ce{NH3>PH3>AsH3>SbH3>BiH3}$. I tried but could find no explanation to why this happens. Can ...
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0answers
44 views

Is S7H4 a chemical?

I want to find a chemical that will react with $\ce{SO2}$ to make water and pure sulfur to battle both greenhouse gasses and drought. I think $\ce{S7H4}$ would do it, but I don't know if it exists. ...
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2answers
61 views

Baking soda bath to deacidify newsprint?

I have some oil-pastel sketches on newsprint I would like to treat for framing (and longevity). My plan is to rinse them in a deacidifying bath, then use wheat paste to wet-mount them to heavyweight ...
2
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1answer
24 views

Which of the following statements is true about the trend DOWN group 7

Which of the following statements is true about the trend DOWN group 7 (halogens) with increase in atomic number A. The reactivity increases. B. The atoms get smaller C. The boiling points decrease ...
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1answer
64 views

Why are d-d electronic transitions forbidden and weakly absorbing? Why do they occur at all?

I am unable to understand why d-d electronic transitions are forbidden? Why are they weakly absorbing and apart from that, why do they occur at all?
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32 views

spin only magnetic moment incase of octahedral,square planar fields [closed]

How to calculate the spin only magnetic moment for a d8 ion in octahedral,square planar and tetrahedral ligand fields?
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17 views

Why is magnesium hydroxide not hygroscopic?

I asked this question today and my professor was unable to provide any rationale. I know that sodium hydroxide is hygroscopic, but why not magnesium hydroxide (at least to the same extent as NaOH)? ...
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1answer
30 views

The instability of hydrated carbon dioxide or “carbonic acid”

Why is hydrated carbon dioxide - the predominant form of acid that one gets upon dissolution of carbon dioxide in solution - so unstable? Is the below rationale valid? Carbon in carbon dioxide has ...
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1answer
40 views

What happens when ice melts?

What happens when ice melts? I have this question, with two possible answers: regularly arranged molecules change into irregularly arranged molecules water molecules become less densely packed ...
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1answer
24 views

how to determine timescale with characterization methods?

There are as classified in the Atkins textbook 4 different timescales on material characterization: a)Time during which a quantum of radiation or a particle can interact with a molecule. b)Lifetime of ...
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Photoelectrochemical (PEC) water splitting

I'm starting to prepare for my research project on photoelectrochemical (PEC) splitting of water into H and O using (F doped) titanium dioxide as the photoanode. I've been unsuccessfully searching in ...
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1answer
21 views

Silver identification of the group I of cations

I was wondering if this actually happens in a chemical reaction $$AgCl_{(s)} + 2NH_4OH_{(aq)} \rightleftharpoons Ag(NH_3)_{2(aq)}^+ + Cl^-_{(aq)} + 2H_2O_{(l)}$$ My teacher wrote something like this ...
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3answers
58 views

What would the Electronic Configuration of Ru²⁺ be?

I'm doing homework for Inorganic Chemistry, and I am a little confused. The Question is: What is the electronic configuration of $\ce{Ru^{2+}}$? If I were to remove from the highest energy ...
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3answers
46 views

Why won't increasing the temperature increase the solubility of a gas in a liquid solvent?

If I raise the temperature of a solution of a gas in a liquid solvent, why won't the solubility increase? Increasing the pressure will increase the solubility, but increasing the pressure doesn't ...
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1answer
53 views

Why can't organic acids be concentrated and used like concentrated sulphuric acid, etc?

Is it possible to make organic acids concentrated like inorganic acids like concentrated sulphuric acid, etc?
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1answer
35 views

Dihedral angle of gaseous and crystalline HOOH

Why does hydrogen peroxide exhibit a dihedral angle of 111.5 degrees in the gaseous state? And a dihedral angle of 90.2 degrees in the crystalline phase? I know that in general, there is likely to ...
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2answers
24 views

Extracting silver from Tollens test

When we add tollens reagent (diamminesilver(I) cation, $\ce{[Ag(NH3)2]+}$) to glucose it forms a silvery mirror on the walls of the container. Since the sides are coated with actual Silver, is ...
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17 views

Identifying probable compound using its colour & reactants

This is quote from OxyChem document on Hypochlorites: Steel tanks in caustic soda service become passivated with a gray-black film forming on the metal. Thereafter, caustic soda at less than ...
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1answer
53 views

Explaining Ba(OH)2 as a base?

It is well known fact that Barium Hydroxide is a base. How does the Brønsted-Lowry concept explain $\ce{Ba(OH)2}$ as a base? Is it that $\ce{Ba(OH)2}$ first accepts a proton then leaves behind ...
4
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1answer
35 views

Is there a systematic way to determine the expected cubic structure of metals?

I've noticed that some groups of metals with similar properties tend to belong to the same cubic structure group, such as $\text{FCC, BCC, or HCP}$. What is a good explanation as to why these metals ...
3
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1answer
55 views

What's the order of oxidising strength of the oxyacids of Chlorine?

What I have been told is that the acidity of the four oxyacids of Chlorine increase in the order $\ce{HOCl} < \ce{HOCl2} < \ce{HOCl3} < \ce{HOCl4}$. I have also been told that the oxidising ...
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68 views

Using non-food grade NaOH for pH control

I would like to use non-food grade $\ce{NaOH}$ for $\ce{pH}$ water treatment. Any problem with this mixing with water that contains iron? The $\ce{NaOH}$ will be pumped into a well. As a $25\%$ ...
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1answer
274 views

Making Zn in school lab

I want to make $\ce{N2O}$ in my school chem lab. I'm thinking of making it from $\ce{Zn_{(s)}}$ in $\ce{HNO3_{(dil)}}$ : $$\ce{ Zn_{(s)} + HNO3_{(dil)} -> N2O + Zn(NO3)2 + H2O }$$ I'm not able ...
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1answer
31 views

What does a radical mean here?

I'm really confused as none of the definitions of radical on the internet compare to this. This is from my college textbook of Applied Chemistry- Radicals Every inorganic compound is made up ...
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19 views

Can anyone explain the reaction mechanisms of these synthesis?

Can anyone explain the reaction mechanism of the following synthesis ? 2NH4Cl + Ca(OH)2 --> 2NH3 + 2H2O + CaCl2 (NH4)2SO4 + 2NaOH --> 2NH3 + 2H2O + NaSO4
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1answer
39 views

Structure of diamond

"diamond structure. Every carbon atom is bonded to four other carbon atoms forming a three-dimensional lattice of chair conformations." SENTENCE FROM A BOOK What does this mean? Where I am struck ...
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29 views

Why does ozone have an electrostatic potential map similar to that of SO2?

This is the electrostatic potential for ozone. This is the electrostatic potential for sulfur dioxide. They look almost exactly the same except 1 is all oxygen atoms and the other has sulfur in ...
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2answers
93 views

Does O2 have a color in the gas phase

I have noticed that liquid O2(I clarify it as O2 because oxygen exists in several other forms which have different colors in the liquid state than O2) has a light blue color to it. In the solid ...
5
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2answers
543 views

What are Nitrogen fumes?

What is the actual composition of Liquid Nitrogen fumes? Are the harmful anyways if directly came in contact with?
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1answer
22 views

How is ammonia used in production or processing of steel?

There are some large tanks of ammonia in nearby iron works. I wonder, what do they need it for? What is the application of ammonia in steel industry - what processes of making or processing steel ...
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2answers
59 views

Advanced Level Chemistry Book Recommendation

I have a test comming up on Chemistry in Advanced Level and I sincerly ask for a book recommendation for chemistry. I already got the book chemistry by Ramond Chang. And I am pretty near to the exam. ...
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1answer
48 views

Elementar cell of Y2O3

I think this picture from wikipedia is wrong because I count: \begin{align} \left. \begin{array}{ccccr} 1&×&1 &= &\ce{1~Y} \\ 6&×&\frac{1}{8} &= &\ce{\frac{3}{4}O} ...
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20 views

Extreme Thermodynamic Stabilities of Metal Aquo/Hydroxide Complexes

From this table of standard oxidation potentials we can see that the hydrated metal hydroxides are much more thermodynamically stable than their elemental counterparts. The numbers on the far right ...
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2answers
170 views

How many different possible structures (isomers) are there for the complex, [Mn(OH2)3(NH3)3] 3+?

How many different possible structures (isomers) are there for the complex, $\ce{[Mn(OH2)3(NH3)3]^{3+}}$? I really don't know how to begin with this. I know the answer is 2, but i don't have the ...
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1answer
53 views

What is the reason for the different solubility of silver halides in ammonia?

According to my knowledge, I know that $\ce{AgCl}$ dissolves in dilute ammonia, $\ce{AgBr}$ dissolves in concentrated ammonia and $\ce{AgI}$ does not dissolve even with concentrated ammonia. What is ...
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1answer
103 views

Byproducts of the neutralisation of hydrochloric acid with sodium hydroxide

Given a 1M concentration of $\ce{HCL}$ and $\ce{NaOH}$ here are the pHs: pH of $\ce{HCL}$: 1 pH of $\ce{NaOH}$: 13-14 and of course water has a pH of 7. Here is a reaction that is most likely to ...
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1answer
31 views

Why are oxides always of the form AyOx with A representing any atom except oxygen and fluorine

I notice that for quite a few elements, oxygen comes before it in alphabetical order. Here is one of the rules in inorganic chemistry for molecular formulas: Put all the elements in alphabetical ...
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35 views

Carbon Oxides and stability

If C2O4 is very unstable no matter the configuration(that is the structure based on the bonds) and especially unstable in the form that has an oxyanion and a carbocation than how come other carbon ...