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Top Questions

10 votes
3 answers
2k views

Why is there a decrease in the total volume when NaOH dissolves in water?

9 votes
1 answer
789 views

How does xenon react with O₂F₂?

7 votes
2 answers
283 views

Bonding in hypervalent molecules

6 votes
2 answers
239 views

Why does aldolase not act upon glucose-6-phosphate?

6 votes
3 answers
440 views

Balancing a redox reaction equation with a mystery reactant

5 votes
2 answers
112 views

Does the MS oxygen peak at m/z = 16 correspond to $\ce{O+}$ or $\ce{O2^{2+}}$?

5 votes
1 answer
380 views

Is resonance possible in a structure with consecutive double bonds? Like in carbon dioxide (CO2)

4 votes
2 answers
416 views

Suitable solvents to dissolve Aluminum Chloride (anhydrous) without generating Hydrochloric Acid (aqueous or gas)

5 votes
3 answers
170 views

Why are there so many metals in the periodic table?

3 votes
2 answers
265 views

Doubt on the process to determine the amount of precipitate of a salt, product of a reaction between two solutions

4 votes
3 answers
153 views

Excited states and emission lifetimes

8 votes
2 answers
149 views

Schlögl model - Stationary States far from Equilibrium

1 vote
2 answers
386 views

What will be the products of the reaction between a metal (i.e. zinc) and a solution containing two dilute acids i.e. HNO3 and H2SO4? [closed]

2 votes
2 answers
175 views

Magnesium vs calcium vs barium ions from these 3 tests

0 votes
2 answers
347 views

Reversible endothermic reaction

0 votes
2 answers
69 views

Are the (133,885) molecules in the QM9 database drug-like?

3 votes
2 answers
133 views

Total entropy change for reversible reactions and its relationship to equilibrium constant

6 votes
1 answer
209 views

How does heating alkali metals with graphite change its conductivity and density?

0 votes
2 answers
156 views

Which gases(or gas) are evolved in the leaching of Galena(PbS) with conc. Nitric acid? [closed]

0 votes
2 answers
81 views

Is eta hexachloro cyclohexane optically active compound?

3 votes
1 answer
151 views

What exactly happen when 532nm laser cause fluorescence in red objects

5 votes
1 answer
111 views

Unequal bond lengths of resonating bonds in dinitrogen trioxide

-2 votes
2 answers
84 views

Is it possible that the chemical composition of Greek fire could have been an alkali metal?

2 votes
2 answers
77 views

Why does the rate of change of atomic radius in the second period change so drastically?

1 vote
2 answers
96 views

How does carbon dioxide in the atmosphere keep heat trapped?

0 votes
3 answers
73 views

Non toxic Chemicals that will react in water?

4 votes
2 answers
180 views

Provide a mathematical explanation of why the non-relativistic Schrödinger equation for a Molecular system, cannot be solved analytically?

4 votes
1 answer
161 views

Should durations of time be considered to determine final significant figures of answer?

4 votes
1 answer
157 views

How did we know about the existence of elements before quantum theory? [duplicate]

2 votes
1 answer
200 views

Is Silica Gel fit for Ultra-High Dessication?

2 votes
1 answer
228 views

Why is the entire 3p sublevel peak shifted to the right on a PES of Sulfur vs Phosphorus?

2 votes
1 answer
95 views

Molecular collisions in an ideal gas

2 votes
2 answers
112 views

What kind of solution is formed when alkali metals are dissolved at high concentration in liquid ammonia?

2 votes
1 answer
111 views

How does pH affect the rate that CaCO3 dissolves in freshwater?

1 vote
1 answer
108 views

How do I calculate enthalpy change calculations questions?

-1 votes
1 answer
74 views

Can we calculate final temperature of two gases in thermal contact? [closed]

1 vote
1 answer
107 views

Dissociation of Water?

-1 votes
2 answers
104 views

Can an element be a single atom or a molecule made up of atoms of the same element?

1 vote
3 answers
80 views

What bonds are formed between O2 molecules?

4 votes
1 answer
93 views

Can heterocyclic molecules form sandwich-like complexes?

-1 votes
3 answers
68 views

What is the overall oxidation number of polyatomic ions?

0 votes
2 answers
65 views

Synthesis and retrosynthetic analysis of dicyclohexylamine

-1 votes
1 answer
81 views

Is lead iodide a strong electrolyte?

3 votes
1 answer
77 views

Is there a see through material that can endure 2000°C?

1 vote
2 answers
56 views

Relation between activation and threshold energies

-2 votes
2 answers
143 views

What is the state of matter of a substance if the melting point or boiling point of a substance is exactly at room temperature(25 degree Celsius)?

2 votes
2 answers
66 views

How would I go about determining the concentration of ammonia in Windex Original Glass Cleaner, post titration?

0 votes
1 answer
80 views

Is it possible to physically stretch US paper currency? [closed]


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