Answer:
B. 47 nm is the wavelength of a photon with a frequency of 6.56 x 1014 Hz.
Answer:
2m.
Explanation:
molality = no.of moles of solute ÷ mass of solvent in kg
molalty = 1.5 moles ÷ 0.75 g
= 2m
What is the physical properties and the physical change ?
Answer:
1. A physical property is any property that can be observed using the five senses or can be measured without changing the matter.
2. A physical change is a change where no new substance is formed. Physical changes affect the form of a substance, but not what it's made up of
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Celsius: -11.7
Kelvin: 261.5
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The structures and chemistry of individual hydrocarbons depend a large part on the types of chemical bonds that link together the atoms of their constituent molecules. Hydrocarbons are derived by chemical degradation.