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Reil [10]
2 years ago
13

1. Explain why the cold water and hot water in Part 1 moved the way they did within the tub of

Chemistry
1 answer:
neonofarm [45]2 years ago
5 0

Answer:

Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. Hot water is less dense and will float on room-temperature water. <u>Cold water is more dense and will sink in room-temperature water.</u>

<u></u>

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The reactant concentration in a second-order reaction was 0.560 m after 115 s and 3.30×10−2 m after 735 s . what is the rate con
Aloiza [94]
Use the formula for second order reaction:

\frac{1}{C} = \frac{1}{C_0} + kt

C = concentration at time t 
C0 =  initial conc.
k = rate constant
t = time

1st equation :   \frac{1}{0.56} = \frac{1}{C_0} + 115k

2nd Equation: \frac{1}{0.033} = \frac{1}{C_0} + 735k

Find \frac{1}{C_0} from 1st equation and put it in 2nd equation:

\frac{1}{0.033} = \frac{1}{0.56} - 115k + 735k

\frac{1}{0.033} - \frac{1}{0.56} = 620k

k = 0.046
3 0
3 years ago
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Molodets [167]

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4 0
3 years ago
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How do the bones protect your organs?
Sever21 [200]

Answer:

Yes

Explanation:

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8 0
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Which property explains why water is able to travel against gravity, from the roots of a plant to the leaves at the top of the p
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Answer:

Surface tension is also a property that enables water to travel against gravity.

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Surface tension is a property of a liquid that holds the surface together and allows it to resist an external force.

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3 years ago
Which equation obeys the law of conservation of mass?
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4Fe + 3O2 -> 2 (Fe2O3)

Both sides have 4Fe and 6O.
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3 years ago
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