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galina1969 [7]
3 years ago
9

How do meteorologists make accurate weather predictions?

Chemistry
1 answer:
balu736 [363]3 years ago
4 0

Answer:

Meteorologists use computer programs called weather models to make forecasts. Since we can't collect data from the future, models have to use estimates and assumptions to predict future weather. ... A seven-day forecast is fairly accurate, but forecasts beyond that range are less reliable.

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Calculate the energy(J) change associated with an electron transition from n=2 to n=5 in a Bohr hydrogen atom. Put answer in sci
Oliga [24]
The energy at n level of hydrogen atom energy level =13.6/n^2

substiture the respective n values in the equation above and find the difference in the energy levels

instagram : imrajsingh

gimme a follow^ :)
3 0
3 years ago
Read 2 more answers
Calculate the whole-number ratio of staggered to eclipsed conformers that are present at room temperature. Use the Actual G˚ bar
natka813 [3]

Answer:

The ratio of staggered to eclipsed conformers is 134

Explanation:

It is possible to determine the ratio of staggered to eclipsed conformers of a reactant, using the equilibrium:

Staggered ⇄ Eclipsed

Keq = [Eclipsed] / [Staggered]

That means Keq is equal to the ratio we need to find:

Using:

G˚= -RTln Keq

<em>Where G° = -12133.6J/mol</em>

<em>R is gas constant: 8.314J/molK</em>

<em>T is absolute temperature: 298K</em>

<em />

-12133.6J/mol= -8.314J/molK*298K ln Keq

4.8974 = ln Keq

134 = Keq = [Eclipsed] / [Staggered]

<h3>The ratio of staggered to eclipsed conformers is 134</h3>
3 0
3 years ago
What is the IUPAC name for the compound ZnO?
harina [27]
It's 
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7 0
3 years ago
What precipitate is formed when solutions of aluminum nitrate and calcium<br> chromate are mixed?
Scrat [10]

Answer:

Aluminum chromate, a yellow precipitate.

Explanation:

{ \bf{2Al(NO _{3} ) _{3(aq)}+ 3CaCr _{} O _{4(aq)}   → { \orange{Al _{2} (CrO _{4} ) _{3(s)}} +3 Ca(NO _{3}) _{2(aq)} }}}

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3 years ago
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ivanzaharov [21]

Answer:

(−ΔH°1)+12(−ΔH°2)+(ΔH°3)+(ΔH°4)

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3 years ago
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