7
How is chirality center defined for an atom with 5 substituents?
chemistry.stackexchange.com

7
Thermal instability of sulfur and selenium iodides
chemistry.stackexchange.com

7
Show that scalene triangle $\triangle ABC$ is a right-triangle if $\sin(A)\cos(A)=\sin(B)\cos(B)$
math.stackexchange.com

7
solve in positive integers the equation $2x^2+x = y+3y^2.$
math.stackexchange.com

7
Why do dihaloalkanes lose both halogen atoms during mass spectrometry?
chemistry.stackexchange.com

7
How to find range $a_{75}$ of the term of the series $a_n=a_{n-1}+ {1 \over {a_{n-1}}} $
math.stackexchange.com

7
What does the crystal field splitting diagram for trigonal planar complexes look like?
chemistry.stackexchange.com

7
Can a number like $101$, $10001$ or $1001$ have a square factor?
math.stackexchange.com

7
What hydrocarbons burn in air without a change in volume?
chemistry.stackexchange.com

7
Correct structure of compound tetraiodine nonoxide
chemistry.stackexchange.com

7
Reaction between barium peroxide and hypochlorous acid
chemistry.stackexchange.com

7
Can “hydrates” of crystals form with other molecules?
chemistry.stackexchange.com

7
What are some simple problems that calculators get wrong?
matheducators.stackexchange.com

7
Sodium borohydride and lithium aluminium hydride
chemistry.stackexchange.com

7
Is it possible to make a carbon icosahedron?
chemistry.stackexchange.com

7
Why is there a yellow solution formed upon reaction of silicon tetrachloride with water?
chemistry.stackexchange.com

7
Electrophilic substitution on Borazole
chemistry.stackexchange.com

7
Has there ever been an astronaut that bailed out on going to space last minute?
space.stackexchange.com

7
Why is Thorium (At. no. 90) an f-block element at all?
chemistry.stackexchange.com

7
Can the degree of dissociation of a weak acid be more than 1?
chemistry.stackexchange.com

7
An unpublished calculation of Gauss and the icosahedral group
mathoverflow.net

7
Is (2R,3S)-2,3-dichloropentane optically inactive?
chemistry.stackexchange.com

7
Oxidation states of Thiosulphate
chemistry.stackexchange.com

7
Why benzenediazonium bromide and iodide are of little interest?
chemistry.stackexchange.com

7
Sources of Xenon or other noble gases in space?
space.stackexchange.com

7
Does Fe(CO)6 really exist?
chemistry.stackexchange.com

7
Find natural number $x,y$ satisfy $x^2+7x+4=2^y$
math.stackexchange.com

7
Island of Stability - Why not smash massive elements?
chemistry.stackexchange.com

7
Why does reduction using sodium borohydride require a protic solvent?
chemistry.stackexchange.com

7
Circular angles vs. hyperbolic angles
math.stackexchange.com

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