4 years ago

Why does the temperature remain constant during melting till all the ice has melted?

1 answer:

4 0

All the energy goes into melting the ice. Ice and water are at equilibrium during melting, so the temperature does not change.

Once all the ice has melted to water, the temperature will rise.

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A solution that dissloves completely is called a?

snow_tiger [21]

soluble substances dissolves in solvents

3 0

3 years ago

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A metal ion (X) with a charge of 4+ is attracted to non metal ion (Z) with a charge of 3-. Which of these formulas represents th

Brums [2.3K]

Answer:

Explanation:

the charges need to balence out

so finding the LCM which is 12 we find we need 3x's

and 4 zs

so that makes the formula X3Z4 which is D

6 0

3 years ago

How many moles of N20 gas would have a volume of 3.8 L at 460 mmHg and 77°C?

Citrus2011 [14]

We are given:

Volume of gas = 3.8 L

Pressure = 460 mmHg

Temperature = 77°c = (77+273)K = 350K

Converting the pressure to atm:

Pressure(in atm) = Pressure(in mmHg) / 760

Pressure = 460/760 = 0.6 atm

Finding the number of moles:

using the ideal gas equation:

PV = nRT [where R is the universal gas constant]

replacing the given values in this equation

(0.6)(3.8) = n(0.082)(350)

n = (0.6*3.8)/(0.082*350)

n = 0.08 moles

7 0

3 years ago

Conclusion

Natalija [7]

whats the question?

8 0

3 years ago

How many Liters of 0.968M solution can be made if 0.581 moles of solute are added? Group of answer choices 0.600 L 60 mL 0.562 L

Rzqust [24]

Answer:

0.6L

Explanation:

The formula of molarity is molSolute/litreSolution

$0.968M=\frac{0.581}{LitreSolution} \\\\LitreSolution=\frac{0.581}{0.968} \\LitreSolution=0.6L$ .

7 0

4 years ago