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frosja888 [35]
3 years ago
14

4. Cuanto electrones se necesitan para pesarlo mismo que un proton?

Chemistry
1 answer:
sdas [7]3 years ago
7 0

Answer:

aproximadamente dos mil

Explanation:

masa_proton/masa_electron=

1.673e-24 / 9.11e-28 = 1836.443468715697

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A gradual change over time in a species that enables the species to better survive in its environment is known as a(n)
sattari [20]

Answer:

Adaption

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3 years ago
Read 2 more answers
Given the following equation: 2h20=2h2+02 how many grams of o2 are produced if 3.6 grams of h20 react?
inn [45]

Answer:

3.2 g O₂

Explanation:

To find the mass of O₂, you need to (1) convert grams H₂O to moles H₂O (via molar mass), then (2) convert moles H₂O to moles O₂ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles O₂ to grams O₂ (via molar mass). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units (the desired unit should be in the numerator). The final answer should have 2 sig figs to reflect the sig figs of the given value (3.6 g).

Molar Mass (H₂O): 2(1.008 g/mol) + 15.998 g/mol

Molar Mass (H₂O): 18.014 g/mol

2 H₂O -----> 2 H₂ + 1 O₂

Molar Mass (O₂): 2(15.998 g/mol)

Molar Mass (O₂): 31.996 g/mol

3.6 g H₂O         1 mole               1 mole O₂           31.996 g
----------------  x  ---------------  x  ---------------------  x  ---------------  = 3.2 g O₂
                         18.014 g          2 moles H₂O          1 mole

3 0
1 year ago
(Timed) What part of an atom involved in a chemical reaction?
tino4ka555 [31]
D.electron
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