The simplest whole-number ratio of atoms in a molecule or formula unit is called the empirical formula. The empirical formula is clearly different from the structural formula and the molecular formula. Not all substances that have the same empirical formula have the same molecular formula too.
the device that measures air pressure is called a barometer.
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Answer:
melting point,boiling point ,density,refractive index.
Explanation:
Answer:
Use E = h*c / lambda, where h is Planck's constant, c is the speed of light, and lambda is the wavelength.
E = (6.626 * 10^-34 J*s x 3.00 * 10^8 m/s) / (1*10^-6 m) = 1.99 * 10^-19 J
Explanation:
Answer:
2Al + 3CuSO4 → Al2(SO4)3 + 3Cu
Explanation:
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