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Allushta [10]
2 years ago
8

What is the degree of lightness or darkness of a material is called its

Chemistry
1 answer:
Ede4ka [16]2 years ago
4 0
Is called it’s value.
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Lesechka [4]

Answer:

Transition elements are elements which have partially filled d-orbitals and form at least one or more stable ions.

6 0
3 years ago
An element crystallizes in a face-centered cubic lattice. If the length of an edge of the unit cell is 0.408 nm, and the density
V125BC [204]

Answer:

Au

Explanation:

For the density of a face-centered cubic:

Density = \dfrac{4 \times M_w}{N_A \times a^3}

where

M_w = molar mass of the compound

N_A= avogadro's constant

a^3 = the volume of a unit cell

Given that:

Density (\rho) = 19.30 g/cm³

a = 0.408 nm

a = 0.408 \times 10^{-9} \times 10^{2} \ cm

a = 4.08 \times 10^ {-8} \ cm

∴

19.3 = \dfrac{4 \times M_w}{(6.023 \tmes 10^{23})\times (4.08 \times 10^{-8})^3}

M_w= \dfrac{19.3\times (6.023 \times 10^{23})\times (4.08 \times 10^{-8})^3}{4}

M_w=197.37 \ g/mol

Thus, the molar mass of 197.37 g/mol element is Gold (Au).

4 0
3 years ago
Which is more acidic among the following?​
GaryK [48]

Answer:

C

Explanation:

7 0
2 years ago
How many people have died as a results of the spread of virus?
pshichka [43]

Answer:

70000000000

Explanation:

6 0
3 years ago
I will give brainliest to correct answer - no links
WINSTONCH [101]

Answer:

C - 23cm

Explanation:

6 0
2 years ago
Read 2 more answers
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