The formula for sulfuric acid is _________________
Fill in the blank(s) with correct word
H2SO4
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A diffraction grating is to be used to find the wavelength of the emission spectrum of a gas. The grating spacing is not known, but a light of a known wavelength of 632.8 nm is deflected by 43.2° in the second order by this grating
Light of the wavelength to be measured is deflected by 34.9° in the second order. What is the wavelength of this light?
Power: A 100-W light bulb is operated by a 110-V dc source. What is the resistance of this bulb?
A. 100 ? B. 8.0 × 10-3 ? C. 6.0 × 10-3 ? D. 120 ? E. 240 ?
Which of the following could be the molecular formula for an alkane?
a. C5H5 b. C7H14 c. C4H7 d. C10H18 e. C4H10
The violent explosive death of an aging massive star results in a _____
A) planetary nebula B) white dwarf C) supernova D) spiral trace