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crimeas [40]
3 years ago
10

How did Moseley establish a more accurate periodic table?

Chemistry
2 answers:
kompoz [17]3 years ago
6 0

the answer is b . i passed my test

GrogVix [38]3 years ago
4 0
<span>B.by arranging the elements according to atomic number instead of atomic mass</span> awnser is B
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A sample of neon gas is at a temperature of 60°C and has a volume of 300 cm. What is the volume of the gas if it is heated to 10
elena55 [62]

Answer:

336.04 cm

Explanation:

T1 = 60+273 = 333K

T2 = 100+273 = 373K

V2 = (V1×T2)/T1

V2 = 300×373/333

V2 = 336.04 cm

6 0
3 years ago
T’Keyah puts salt in ice water and then in boiling water to see which will dissolve faster.Which dissolving rate factor is she t
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its in the book

8 0
2 years ago
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List two structures that have similar functions in plants and animals.how are they different
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3 years ago
Which pair of atoms would form a covalent bond ?
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7 0
3 years ago
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A hypothetical metal crystallizes with the face-centered cubic unit cell. The radius of the metal atom is 234 picometers and its
AleksAgata [21]

Answer:

\delta=101.13 g/cm^3

Explanation:

As can be seen in the Figure in a face-centered cubic unit cell you have:

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In total:

n_{atom}=6*0.5+8*\frac{1}{8}=4 atoms

Now, each side of the cell is 234 picometers (2.34e-8 cm) long

V_{cell}=L^3=(2.34e^{-8} cm)^3

V_{cell}=1.28*10^{-23}cm^3

Atoms per cm3:

n=\frac{4 atoms}{1.28*10^{-23}cm^3}

n=3.12*10^{23} atoms/cm^3

Expressing in mass:

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\delta=101.13 g/cm^3

6 0
3 years ago
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