2 years ago

What two major Southeastern U.S. cities will be underwater if sea level rose 6 feet?

1 answer:

6 0

Answer:

Rising sea levels would be devastating in North Somerset, with large parts of Clevedon, Weston-super-Mare and Burnham all being underwater by 2050 according to Climate Central

Explanation:

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What does fire mean

Bond [772]

Answer:

Hot and something you do not touch

Explanation:

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2 years ago

A certain substance X has a normal freezing point of -6.4 C and a molal freezing point depression constant Kf= 3.96 degrees C.kg

Brut [27]

Answer: $1.0\times 10^2g$

Explanation:

Depression in freezing point is given by:

$\Delta T_f=i\times K_f\times m$

$\Delta T_f=T_f^0-T_f=(-6.4-(13.6))^0C=7.2^0C$ = Depression in freezing point

i= vant hoff factor = 1 (for non electrolyte like urea)

$K_f$ = freezing point constant = $3.96^0C/m$

m= molality

$\Delta T_f=i\times K_f\times \frac{\text{mass of solute}}{\text{molar mass of solute}}\times \text{weight of solvent in kg}}$

Weight of solvent (X)= 950 g = 0.95 kg

Molar mass of non electrolyte (urea) = 60.06 g/mol

Mass of non electrolyte (urea) added = ?

$7.2=1\times 3.96\times \frac{xg}{60.06 g/mol\times 0.95kg}$

$x=1.0\times 10^2g$

Thus $1.0\times 10^2g$ urea was dissolved.

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3 years ago

How many moles and atoms are there in 60 grams of Calcium?

marta [7]

Answer:

The moles present in 60 g of calcium are 1.5 moles.

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2 years ago

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The geocentric theory was once accepted as an explanation of how objects were positioned in our solar system. Which statement be

dusya [7]

Answer: c

Explanation:

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2 years ago

• Reflect on the importance of stoichiometry and rate of chemical reaction in the design of car airbags

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Answer:

If an insufficient amount of nitrogen were produced, the air bag would under inflate and not provide adequate protection. Clearly, the stoichiometry of the reaction is very important.

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1 year ago