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3 years ago

__________ have an electric charge of -1.60 × 10-19 C (-e).

Chemistry

1 answer:

nignag [31]3 years ago

6 0

Answer:

Electrons have an electric charge of -1.60 × 10-19 C

Explanation:

Neutrinos and Neutrons have 0 e charge.

Protons have an electric charge of 1.60 × 10-19 C

Historically, electrons were assigned a negative charge

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Dvinal [7]

Answer:

a) 1s22s22p63s1

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c) 1s22s22p63s23p3

d) 3s² 3p⁵

e) 3s2

f) 1s22s22p63s23p2

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3 0

3 years ago

Find the number of grams <br><br>4.00 moles of CU(CN)2

USPshnik [31]

Answer:

462g

Explanation:

First, let us calculate the molar mass of Cu(CN)2. This is illustrated below:

Molar Mass of Cu(CN)2 = 63.5 + 2(12+14) = 63.5 + 2(26) = 63.5 + 52 = 115.5g/mol

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Mass of Cu(CN)2 = 462g

4 0

3 years ago

When aqueous solutions of Li3PO4 and MgSO4 are mixed, Mg3(PO4)2 is a precipitate

Lesechka [4]

Answer:

Li2SO4

Explanation:

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8 0

3 years ago

The temperature in your town is 31°F. The radio announcer says that the temperature will drop 15 degrees. What will the temperat

hoa [83]

Answer:

The temperature of the town will be 15°F.

The equation showing the final temperature after drop say x degrees can be written as:

$T'=(T-x)^oF$

Explanation:

The current temperature in our town = T = 31°F

Temperature drop suggested by radio announcer = 15°

Temperature of the town after temperature drop = T'

$T'=T-15^oF$

$T'=31^oF-15^oF=16^oF$

The equation showing the final temperature after drop say x degrees can be written as:

$T'=(T-x)^oF$

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4 years ago

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pantera1 [17]

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3 years ago