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Elenna [48]
1 year ago
11

Could use some help, thanks. Complete each row of the table below by filling in the missing prefix or missing exponent.

Chemistry
1 answer:
Minchanka [31]1 year ago
3 0

Answer:

if eel u gngg ferr

Explanation:

asdads

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True

Explanation:

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A student believes that a solution of potassium chromate should be insoluble
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All ionic compounds with alkali metals are soluble.

Explanation:

Certain elements always form soluble substances. Most of those elements are alkali metals/group 1 metals.

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What process must occur to cause sediment to stick together when forming sedimentary rock?
Gennadij [26K]

Answer:

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3 years ago
Copper crystallizes in a face-centered cubic lattice (the Cu atoms are at the lattice points and at the face centers). If the de
Delvig [45]

Answer:

The unit cell edge lenght in pm is equal to 361 pm

Explanation:

Data provided:

ρ=Copper density=8.96 g/cm3

Atomic mass of copper=63.54 g/mol

Atoms/cell=4 atoms (in theory)

Avogadro's number=6.02x10^{23} atoms/mol

Since copper has a cubic structure, its cell volume is equal to a^{3}, which can be obtained through the relationship:

cell volume=\frac{(atoms/cell)(atomic mass)}{(density)(Avogadros number)}

Substituting the values:

cell volume=\frac{(4 atoms)(63.54 g/mol)}{(8.96 g/cm3)(6.02x10^{23}) }=4.71x10^{-23}cm^{3}

clearing, we have:

a=\sqrt[3]{4.71x10^{-23}cm^{3}  }=3.61x10^{-8}cm

We convert from centimeter to picometer, 1cm=1x10^{10}pm

a=3.61x10^{-8}cmx\frac{1x10^{10}pm }{1cm} =361 pm

8 0
3 years ago
What force causes water to run down a mountain ?
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What force causes water to run down a mountain
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