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DerKrebs [107]
3 years ago
7

45:06 What most likely occurred during this demonstration? In a science demonstration, a teacher mixed zinc (Zn) with hydrogen c

hloride (HCI) in a flask and quickly attached a balloon over the mouth of the flask. Bubbles formed in the solution and the balloon inflated. O The Zn and HCl both retained their identity. O Either Zn or HCI, but not both, retained its identity. Evaporation of one of the substances occurred. O One or more new substances formed. Mark this and return Save and Exit Next Submit​
Chemistry
1 answer:
valina [46]3 years ago
3 0

Answer:

One or more new substances formed.

Explanation:

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e. 4.847 x 10-19 J

Explanation:

From the given information:

The equation connecting the photon energy and the wavelength is:

E_{photon } = \dfrac {hc}{\lambda}

where;

planck's  \ constant  \ (h)= 6.626 * 10 ^{-34} J.s

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To determine the photon energy of violet light

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Calculate the amount of heat needed to boil 64.7 g of benzene (C6H6), beginning from a temperature of 41.9 C . Round your answer
JulsSmile [24]

Answer: The amount of heat needed is = 4.3kJ

Explanation:

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Where T1 is initai temperature = 41.9C

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H= 4300J

H=4.3kJ

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8 0
3 years ago
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