1) This element has more than 50 but less than 75 protons and it is in Group 17.

1 answer:

6 0

1) This element has more than 50 but less than 75 protons and it is in Group 17............IODINE (I)
2)This element has more electrons than oxygen but fewer electrons than neon........FLUORINE (F)
3)This element has an atomic number lower than that of aluminun but an atomic mass that is greater than sodium........MAGNESIUM (Mg)
4)This Group 2 element has fewer protons than bromine but more protons than sulfur..........CALCIUM (Ca)
5)This element has an atomic number that is one greater than platinum.............GOLD/AURUM (Au)

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cupoosta [38]

Answer:

5 L

Explanation:

So this problem refers to Charles's law. You would use this formula..

$\frac{V_{I} }{T_{I} } = \frac{V_{F} }{T_{F} }$ (Initial volume / Initial Temperature) = (Final volume / Final Temperature)

For your problem, it would look like this...

$\frac{10L}{1500k} = \frac{V_{F} }{750k}$

You would cross multiply and your answer would be 5L.

To reassure yourself that the answer is correct, Charles law states that the Volume and the Temperature are directly proportional. Meaning if your temperature is decreasing, your volume has to decrease.

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