The process of an atom releasing energy when it moves to a lower energy state is called

Chemistry

1 answer:

Inga [223]3 years ago

4 0

The process of an atom releasing energy when it moves to a lower energy state is called emission.

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An ideal gas has a density of 1.10×10−6 g/cm3 at 1.00×10−3 atm and 80.0 ∘c. identify the gas.

True [87]

From ideal gas equation that is pv =nRt
n=number of moles which can be written as the ratio between the weight of a gas that is mass and its molecular mass n=m/Mm
pv=(m/Mm)RT
density is=mass per unit volume
P=m/v by arranging the equation we get
R =0.082atm/mol/k
Mm=pRT/P=[(1.10 x10^-6 x1000g/l) xo.082 atm/mol/k x(80+273] /(1.00 x10^-3) =31.84 to the nearest ten is 32
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When bridges are built, special joints must be used because the material of the bridge shrinks, and without these joints, the ma

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Expansion

Explanation:

Expansion is the change is size of a body with increasing temperature and tension.

Bridges are built of iron. Iron thermally expands in the presence of increased temperature during the day. The length of the iron will increase by simple fractions. At night, when temperature drops, the bar returns back to its initial position.

The allowance for expansion of the metal is made in order to prevent tension within the structure.
Not doing this will cause the material to break since there is no free space for the bar to change shape.

Learn more:

Expansion in gases brainly.com/question/9979757

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Explanation: just took on edge

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