Compounds that occur in gaseous form at room temperature are ______________ compounds
Fill in the blank(s) with correct word
covalent
You might also like to view...
Thin Lenses: If the magnification of a mirror or lens is negative, it means that
A. the image is smaller than the object. B. the image is inverted and smaller than the object. C. the image is inverted. D. the object is farther from the mirror (or lens) than the image. E. the image is farther from the mirror (or lens) than the object.
How did Edwin Hubble measure the distance to the Andromeda Galaxy?
A) He measured its parallax. B) He used Cepheid variables in the Andromeda Galaxy. C) He deduced it from its redshift. D) He used white dwarf supernovae in the Andromeda Galaxy.
How does a black hole form from a massive star?
A) During a supernova, if a star is massive enough for its gravity to overcome neutron degeneracy of the core, the core will be compressed until it becomes a black hole. B) Any star that is more massive than 8 solar masses will undergo a supernova explosion and leave behind a black-hole remnant. C) If enough mass is accreted by a white dwarf star so that it exceeds the 1.4-solar-mass limit, it will undergo a supernova explosion and leave behind a black-hole remnant. D) If enough mass is accreted by a neutron star, it will undergo a supernova explosion and leave behind a black-hole remnant. E) A black hole forms when two massive main-sequence stars collide.
Estimate the rotational energy (in eV) for a diatomic hydrogen molecule in the l = 2 quantum state
(The equilibrium separation for the H2 molecule is 0.074 nm.) (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s, h = 1.055 × 10-34 J ? s, mH ? mproton = 1.67 × 10-27 kg) A) 0.026 eV B) 0.046 eV C) 0.055 eV D) 0.032 eV E) 0.011 eV