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alekssr [168]
3 years ago
9

What is 2000 converted to scientific notation

Chemistry
2 answers:
schepotkina [342]3 years ago
5 0
2 x 10^3 would be scientific
Tpy6a [65]3 years ago
3 0
2 x 10 ^ 3 
should be the answer ^ 3 is the exponent
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How many moles of MgS2O3 are in 205 g of the compound?
Agata [3.3K]
Mol =   \frac{mass}{molar mass}

Mass of the compound = 205 g
Molar Mass of compound = ((24) + (2 * 32) + (3 * 16))
                                         =  136 g / mol

∴ # mols in 205g =  \frac{205 g}{136 g / mol}
                           = 1.507 mol 

6 0
3 years ago
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In some areas of Texas, rainfall quickly soaks through layers of porous rock and is stored naturally underground. The water is t
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Explanation:

The amount of rainfall would have the greatest impact on the amount of water available for people in this area. The more the rainfall the more water soaks through layers of porous rocks.Hence, level of water table will remain sufficient for easy pumping of water to the homes.Texas receives plenty of rainfall in a year.In a single year the region can receive up to 48 inches (1,200 mm) of precipitation, and flooding is common near rivers and in low-lying areas. Therefore water table remains intact throughout the year.

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3 years ago
What is back titration?​
Yakvenalex [24]

Answer:

Back titration is a titration done in reverse; instead of titrating the original sample, a known excess of standard reagent is added to the solution, and the excess is titrated.

I hope it's helpful!

3 0
3 years ago
A sealed container with liquid water in the bottom was left standing at a constant temperature until the air above the water sur
Julli [10]

Answer:

Saturation.

Explanation:

Hello,

In this case, the statement is accounting for the saturation vapor pressure as it is the pressure of a vapor which is in equilibrium with its liquid, in other words it is the maximum exerted pressure possible by the vapor at a given temperature or just the maximum amount of the vapor, so there is neither no more vapor that could condense nor more liquid that could boil.

Best regards.

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3 years ago
Which of the following transitions represent the emission of a photon with the largest energy?
s2008m [1.1K]

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n=6 to n=3 (B)

Explanation:

Energy of an electron present in the n^{th} orbit is directly proportional to n^{2} .Hence a transistion from one orbit to another orbit emits an energy proportional to the difference of their squares of the orbits. that is if an electron travels from orbit n1 to orbit n2 then it emits an energy corresponding to n_{1} ^{2} -n_{2} ^{2}.So in the above question the highest energy emission occurs when an electron moves from n=6 to n=3.(Highest difference of energy levels).

6 0
3 years ago
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