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3 years ago

The table below gives some characteristics of element Y what is the identity of Y

Chemistry

1 answer:

Dmitry [639]3 years ago

6 0

Answer:

I doint understand that question resend it again

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Which of the following is referenced in the modern "periodic law"

katovenus [111]

Atomic number is correct

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3 years ago

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:

Six halves of atoms
Eight 1/8 of atom (1 in each corner)

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:

$\delta=3.12*10^{23} atoms/cm^3* \frac{1 mol}{6.022*10^{23}}*195.08 g/mol$

$\delta=101.13 g/cm^3$

6 0

4 years ago

Which of the following is true about the two atoms below?

nordsb [41]

Answer:

Different Number of neutrons.

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3 years ago

How do you know when a solution is saturated? _____________________________________________________ When a solution is saturated

mote1985 [20]

Answer:

If more solute is added and it does not dissolve, then the original solution was saturated

If more solute is added and it does not dissolve, then the original solution was saturated. If the added solute dissolves, then the original solution was unsaturated. A solution that has been allowed to reach equilibrium but which has extra undissolved solute at the bottom of the container must be saturate

Explanation:

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3 years ago

What is a example of soda ash

lesya [120]

used in the manufacturing of glass, detergents chemicals and other industrial products.

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4 years ago