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How does the reactivity of the elements in group 2 change on descending the group?
As you go down the Group 2 (alkaline earth elements) elements they become more and more reactive. i.e. H2O+Ca=Ca(OH)2+H2 there is more hydrogen (g) created and at a faster pace than H2O+Mg=Mg(OH)2+H2.
Which has a strong bond H2 or H2 plus?
H2+ has a stronger bond than H2. The addition of a positive charge to the H2 molecule increases the attraction between the two hydrogen atoms, resulting in a stronger bond.
Which element is h2?
H2 is the elemental form of hydrogen.
Is H2 combustible?
Yes, H2 is extremely flammable.
Formula for hydrogen?
Hydrogen gas is H2
Which has higher boiling point H2 or He or Ne or Xe or CH4 and why?
CH4
What is the point group for al2cl6?
The point group is D2h
What is aroyl hydrazine?
Basic hydrazine is a molecule with the formula H2-N-N-H2. Methyl hydrazine has one of the hydrogens replaced with a methyl group ie. H(CH 3)-N-N-H2. An aroyl hydrazine has an aromatic ring group attached instead eg. H (C6H5)-N-N-H2. There may be more then one and up to four such substitutions eg. (C6H5)2-N-N-(C6H5)2
What is the point group for Benzene?
The point group for Benzene is D6h.
When did Six Point Group end?
Six Point Group ended in 1983.
When was Six Point Group created?
Six Point Group was created in 1921.
How does the reactivity of the elements in group 2 change on descending the group?
As you go down the Group 2 (alkaline earth elements) elements they become more and more reactive. i.e. H2O+Ca=Ca(OH)2+H2 there is more hydrogen (g) created and at a faster pace than H2O+Mg=Mg(OH)2+H2.
Highest boiling point between NH3 HCl H2 and KI?
The highest boiling point beween these compounds: potassium iodide (KI) with 1 330 0C.
Which has a strong bond H2 or H2 plus?
H2+ has a stronger bond than H2. The addition of a positive charge to the H2 molecule increases the attraction between the two hydrogen atoms, resulting in a stronger bond.
How many hudrogen molecule are there in 10grams of hydrogen?
1 mole H2 = 2.016g H2 = 6.022 x 1023 molecules H210g H2 x 1mol H2/2.016g H2 x 6.022 x 1023 molecules H2/1mol H2 = 3 x 1024 molecules H2 (rounded to 1 significant figure)
How many moles of hydrogen gas contained in 9.03x1023?
Given/Known:1mole of H2 = 2.01588g H21mole of H2 = 6.022 x 1023 molecules H21) Convert molecules of H2 to moles of H2 by doing the following calculation.9.4 x 1025 molecules H2 x (1mol H2/6.022 x 1023 molecules H2) = 156mol H22) Convert the moles of H2 to mass in grams of H2.156mol H2 x (2.01588g H2/1mol H2) = 314g H2
Formula hydrogen gas?
Its H2
