3 years ago

When light cannot travel trough a material, the light has been

Chemistry

1 answer:

Yuki888 [10]3 years ago

8 0

The answer would be absorbed

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lorasvet [3.4K]

Atomic radius, potassium is farther down on the table

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3 years ago

Some properties of matter depend on how much matter there is. Put an X next to all of the statements you think are true about pr

ella [17]

Answer:

Its B and D :)

Explanation:

I saw the answer key.

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3 years ago

What substances were found in the innermost regions (within about the inner 0.3 au) of the solar system before planets began to

coldgirl [10]

The answer would be Rocks, metals, hydrogen compounds, hydrogen and helium, all in gaseous form.

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3 years ago

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Nadya [2.5K]

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3 years ago

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 8.10kg of water at 33.9 degree

victus00 [196]

Explanation:

The given data is as follows.

q = 69.0 kJ = 69000 J (as 1 kJ = 1000 J),

mass (m) = 8.10 kg = 8100 g (as 1 kg = 1000 g)

$T_{i} = 33.9^{o}C$ = (33.9 + 273) K = 306.9 K

C = 4.18 J/gK

As we know that the relation between heat and change in temperature is as follows.

q = $m \times C \times \Delta T$

Putting the values into the above formula to calculate the final temperature as follows.

q = $m \times C \times \Delta T$

69000 J = $8100 g \times 4.18 J/g K \times (T_{f} - 306.9 K)$

69000 J = $33858 \times (T_{f} - 306.9 K)$

$(T_{f} - 306.9 K)$ = 2.037 K

$T_{f}$ = (2.037 + 306.9) K

= 308.9 K

or, = 309 K (approx)

Thus, we can conclude that the new temperature of the water bath is 309 K.

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3 years ago