Answer:
(a) Wavelength = 4.85 x 10^-12 m
(b) Maximum uncertainty = 5.27*10^-25 kgm/s
Explanation:
(a) Calculating the wavelength using the formula;
λ= h/p
but p = mv
Where;
m = mass of electron = 9.1 x 10-31
h = 6.625 x 10^-34
= h/mv
= 6.625 x 10^-34 / (9.1 x 10^-31 x 1.5×10^8)
= 4.85 x 10^-12 m
so, the wavelength is short enough to reveal molecular details at the atomic level.
(b) Find attached of part b
1.A two face mixture is a type of mixture in which the components of the mixture are in different states of matter. A good example of a two face mixture is carbonated soft drink. Carbonated soft drink is a mixture of carbon dioxide [which is a gas] and water [which is a liquid]. Another example of a two face mixture is the the mixture of iodine and sodium solution.
2. To separate the mixture of iodine and sodium solution the best separation method to use is sublimation.
Sublimation process is used to separate mixtures in which one of the component of the mixture can translate from the solid state to the gaseous state without passing through the liquid state. An example of a solid which can sublime is iodine.
The sublimation process involves heating the mixture. On heating, the sublime solid will turn to vapour and escape from the mixture leaving behind the other component. The sublime component will be regained when it cools down.
Answer:
A clean energy resource
Nuclear energy originates from the splitting of uranium atoms – a process called fission. This generates heat to produce steam, which is used by a turbine generator to generate electricity. Because nuclear power plants do not burn fuel, they do not produce greenhouse gas emissions.
Explanation:
The molecular shapes which have the most electron pairs (both shared and unshared) around the central atom are linear-shaped.
<h3>What are molecular shapes?</h3>
The molecular shapes are the shapes like linear, trigon planner, octahedral, tetrahedral, etc. which depend on the number of atoms and the lone pair and bond pair of atoms.
In linear shape, a maximum number of electrons take part in the hybridization and can also have lone pairs to give repulsion to the bond pairs of the atoms and only 2 electrons take part in bond formation.
Therefore, linear-shaped are the molecular shapes that have the most electron pairs (both shared and unshared) around the central atom.
Learn more about molecular shapes, here:
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Answer:
The characteristics of metallic bonds explain a number of the unique properties of metals: Metals are good conductors of electricity because the electrons in the electron sea are free to flow and carry electric current. Metals are ductile and malleable because local bonds can be easily broken and reformed.
Explanation:
