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3 years ago

What is the ground-state electronic configuration of a chlorine anion (cl—)?

Chemistry

1 answer:

Natasha2012 [34]3 years ago

6 0

Ground state just means the normal state, so the configuration of Cl- is 2, 8, 8.

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a chemist is studying an unknown substance he can break it into its elemental only by using chemical means.Based on this observa

Vanyuwa [196]

Answer:

Compound

Explanation:

We want to know if it's a compound or a mixture.

An example of a mixture is salt water: you can heat it hot enough to boil off the water, leaving only the salt. This is a physical change, which is how you know it's a mixture.

Something like gold is a compound: if you heat it, or hit it, you'll still only have gold. You can only break it down by chemical means, which is how you know it's a compound.

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3 years ago

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Marrrta [24]

Answer:

chemical

Explanation:

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3 years ago

Why is water a special chemical as a solid versus a liquid?

Andrew [12]

Answer:

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Explanation:

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3 years ago

Read 2 more answers

27. The density of nickel is 8.91 g/cm3. How large a cube, in cm3, would contain 2.00 x 10^24 atoms of nickel? Use dimensional a

jok3333 [9.3K]

Answer : The volume of the cube is, $21.88cm^3$

Solution : Given,

Density of nickel = $8.91g/cm^3$

Number of nickel atoms = $2\times 10^{24}$

Molar mass of nickel = 58.7 g/mole

First we have to calculate the moles of nickel.

As, $6.022\times 10^{23}$ atoms form 1 mole of nickel

So, $2\times 10^{24}$ atoms form $\frac{2\times 10^{24}}{6.022\times 10^{23}}=3.321$ moles of nickel

The moles of nickel = 3.321 moles

Now we have to calculate the mass of nickel.

$\text{ Mass of Ni}=\text{ Moles of Ni}\times \text{ Molar mass of Ni}$

$\text{ Mass of Ni}=(3.321moles)\times (58.7g/mole)=194.94g$

The mass of nickel = 194.94 g

Now we have to calculate the volume of nickel.

$Density=\frac{Mass}{Volume}$

$8.91g/cm^3=\frac{194.94g}{Volume}$

$Volume=21.88cm^3$

Therefore, the volume of the cube is, $21.88cm^3$

4 0

3 years ago

Information gathered by a scientist abut the toxicity of chemical X and chemical Y showed that they had individual safe limits f

cupoosta [38]

Answer:

Synergism

Explanation:

Synergism -

It refers to the process of interaction between the any two or more chemicals , i.e. , combining the chemicals increases the effect of the chemical , is referred to as synergism .

The individual drug or chemical might not be strong or harmful in any respect , but combining it with various other drugs or chemical , might make it very strong or harmful .

Hence ,from the given scenario of the question ,

The correct answer is synergism .

3 0

3 years ago