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hoa [83]
2 years ago
13

The boiling point of a solution with a non-volatile solute is higher than that of the pure solvent . True or false

Chemistry
1 answer:
RUDIKE [14]2 years ago
6 0
True because
 it is
.......
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What do you think the axis of rotation means?
larisa86 [58]

Answer:

it means the earth is rotating-

Explanation:

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Glacial striations have been found in South America, South Africa, India, and Australia. What do these marks tell scientist?
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Adding 5.25 g of to 130 g of water in a coffee-cup calorimeter (with stirring to dissolve the salt) resulted in a decrease in te
xxTIMURxx [149]

Answer:

ΔHrxn =  - 1534.3 J

Explanation:

Given the assumptions and the formula for the change in enthalpy:

ΔHrxn = m x C x ΔT,  where

               m is the mass of solution given 135.4 g

               C is the heat capacity 4.2 J/g .K  and,

               ΔT is the change in temperature

we have ,

T₁ = ( 18.1 + 273) K = 291.1 K

T₂ = ( 15.4 +273) K = 288.4 K

ΔHrxn =  135.3 g x 4.2 J/gK x ( 288.4 -291.1 ) K = - 1534.3 J

After verifying our result has the correct unit, the answer is -1534.3 Joules, and the negative sign tells us it is an endothermic reaction decreasing the final temperature.

4 0
3 years ago
Which of the following contains a nonpolar covalent bond? O2 CO NaCI HF
jasenka [17]

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Which is the electron configuration for lithium
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The electron configuration is [HE] 2s1

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