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Mnenie [13.5K]
3 years ago
7

Which atomic model proposed that electrons move in specific orbits around the nucleus of an atom

Chemistry
1 answer:
asambeis [7]3 years ago
5 0
The Bohr Model, which was proposed by Niels Bohr in 1913

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Answer:d

Explanation:I’m not 100% sure how to explain it but I’m almost for sure it’s d.

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A gamma ray primarily consists of pure energy and no mass. TRUE or FALSE
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HELPP!!!!!!!!!!
muminat

1. Mg + CuSO4 —> MgSO4 + Cu

=> Single displacement reaction

2. 2HCI + Mg(OH)2 —> MgCI2 + H2O

=> Acid - base reaction

3.AgNO3 + NaCI —> AgCI + NaNO3

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2 years ago
Based on your solubility rules which of the following compounds would form a precipitate water?
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H2SO4+NaOH=Na2SO4+H2O
3 0
3 years ago
Un anillo, de masa 90 gramos, contiene 59,1% de oro. ¿Cuál es el valor del anillo si cada mol de oro vale S/.1800?. Considere el
LekaFEV [45]

Answer:

S/.486 es el valor del anillo

Explanation:

Para hallar el precio del anillo se deben encontrar las moles de oro que contiene este.

Si el anillo es de 90g y solo el 59.1% contiene oro, la cantidad de oro en gramos es:

90g × 59.1% = 53.19g Oro en el anillo

Ahora, para convertir los gramos de oro a moles se debe usar la masa atómica del oro (197g/mol), así:

53.19g × (1mol / 197g) = <em><u>0.27 moles de oro contiene el anillo</u></em>.

Ya que cada mol de oro cuesta S/.1800, 0.27 moles de oro (Y por lo tanto, el anillo) costarán:

0.27mol × (S/.1800 / 1mol oro) =

<h3>S/.486 es el valor del anillo</h3>
8 0
3 years ago
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