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vesna_86 [32]
3 years ago
7

Which transition is associated with an emission of energy?

Chemistry
1 answer:
Fantom [35]3 years ago
4 0

Answer:

n = 4 to n = 7

Explanation:

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List 1 advantage and 1 disadvantage of a series circuit.<br><br><br><br> Please help!!!
inessss [21]

Answer:

<h2>The advantage is that, you can add additional power devices usually using batteries.</h2>

<h2>The disadvantage is ... if one component in a series circuit fails, then all the components in the circuit fail because the circuit has been broken. </h2>
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3 years ago
A reaction produces 0.801 moles of H2O. How many molecules of H20 are produced?
timama [110]

Answer:

1 mole of molecules = 6.022 × 10²³ molecules

1 = 6.022 × 10²³ molecules / mole

Multiplying a number with [6.022 × 10²³ molecules / mole] is like multiplying the number with 1 so  0.877 mole × 6.022 × 10²³ molecules / mole = 5.28 × 10²³ molecules

5.28 × 10²³ molecules of water is produced.

Explanation:

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2 years ago
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the process of turning from liquid into vapour.

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3 years ago
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Identify the reasons that cities boomed during the Middle Ages.
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Answer:

Explanation:

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3 years ago
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f 23.2 grams of an aqueous solution of nickel(II) iodide, NiI2, contains 5.47 grams of nickel(II) iodide, what is the percentage
Dahasolnce [82]

Answer:

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Explanation:

% by mass of solute = (mass of solute/mass of solution) x 100%

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% by mass of NiI2 = (5.47 grams/23.2 grams) x 100% = 23.58% m/m

3 0
3 years ago
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