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nexus9112 [7]
4 years ago
8

An atom that has 13 protons and 15 neutrons is an isotope of what element

Chemistry
2 answers:
Margarita [4]4 years ago
7 0

Answer:

gfs you want to be your friend and rr

Explanation:

DFW area and go work out a plan to me on my

bekas [8.4K]4 years ago
7 0

c. aluminum.............

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Consider the following reaction.
Ivan

Answer:

162 g Fe₂O₃

Explanation:

To find the mass of Fe₂O₃, you need to (1) convert grams C to moles C (via molar mass from periodic table), then (2) convert moles C to moles Fe₂O₃ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles Fe₂O₃ to grams (via molar mass). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to reflect the given value.

Molar Mass (C): 12.011 g/mol

2 Fe₂O₃(s) + 3 C(s) ---> 4 Fe(s) + 3 CO₂(g)

Molar Mass (Fe₂O₃): 2(55.845 g/mol) + 3(15.998 g/mol)

Molar Mass (Fe₂O₃): 159.684 g/mol

18.3 g C           1 mole            2 moles Fe₂O₃          159.684 g
--------------  x  ----------------  x  -------------------------  x  -----------------  = 162 g Fe₂O₃
                        12.011 g              3 moles C                 1 mole

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2 years ago
Hhhhhhhhhhheeeeeeelppppppp<br>will give brainliest
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Kinetic energy.

Explanation:

7 0
3 years ago
Rain washing away soil from a hillside
Aneli [31]

Answer:

deposition

Explanation:

8 0
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Answer:

Se aclama la nanotecnología por tener el potencial de aumentar la eficiencia del consumo de energía, ayudar a limpiar el medio ambiente y resolver los principales problemas de salud. Se dice que puede aumentar masivamente la producción de fabricación a costos significativamente reducidos.

espero que esto ayude

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3 years ago
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