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sineoko [7]
3 years ago
15

What is the mass of 5.2 moles of Fe?

Chemistry
1 answer:
sashaice [31]3 years ago
7 0

Answer:

279.225g

Explanation:

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Plsz do solv this question hpl​
emmasim [6.3K]
We are given the resistance and voltage of this lamp and we are asked to find the current; the equation that relates these together is Ohm’s Law, V = IR. Simply plug and solve:

V = IR
(220 V) = I(484 Ohms)
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The lamp has a current of 0.4545 Amps passing through it under these conditions.

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3 years ago
Molecular mass expressed in gram is called<br>​
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Answer:

gram atomic mass

Explanation:

Mass of an atom expressed in grams is known as gram atomic mass. It is equal to the relative atomic mass or atomic weight in grams.

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Why do electrons gain energy?
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Electrons can gain the energy it needs by absorbing light. If the electron jumps from the second energy level down to the first energy level, it must give off some energy by emitting light. The atom absorbs or emits light in discrete packets called photons, and each photon has a definite energy.

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How many kilograms are 1.21 x 10^-6 moles of zinc ?
Svetradugi [14.3K]

Answer: The answer is 2.3 x 10 4's.

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Jennie decides to mix the content of her beaker with another lab group to see “the results.” Is this safe why or why not explain
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Answer: no

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It could be dangerous since you don't know what substance are you adding.it may end up in an explosion

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