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3 years ago

Is density qualitative or quantitative poetry?

Chemistry

2 answers:

just olya [345]3 years ago

7 0

Answer:

Density. What is DENSITY? DENSITY is a physical property of matter, as each element and compound has a unique density associated with it. Density defined in a qualitative manner as the measure of the relative "heaviness" of objects with a constant volume.

Explanation:

have a nice weekend

Ksju [112]3 years ago

3 0

The tricky bit with color is that we don't see frequency along a single band. Rather, there are 3 bands (RGB) that get added together (plus a fourth input for brightness as well as many sub-processes that deal with textures and patterns). Light of a single frequency excites one band a lot, the other a little, and the last almost none. This sum is what we percieve. Some people are missing a band (usually blue or green) causing color blindness. Either way, a rainbow looks continuous but by mixing light there are many ways to generate the same color. It's all a bit dirty.

The other stuff seems to confuse the idea of error, eg you seem to think "quantity + error = quality". But in such cases, error is usually known (and compensated for) turning the equation into the sum of two 'knowns', leading to another 'known'.

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determine whether each of the following electron configurations is an inert gas, a halogen, an alkali metal, an alkaline earth m

mamaluj [8]

This is an incomplete question, here is a complete question.

Determine whether each of the following electron configurations is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices.

(a) $1s^22s^22p^63s^23p^5$

(b) $1s^22s^22p^63s^23p^63d^74s^2$

(d) $1s^22s^22p^63s^23p^63d^4s^1$

Answer :

(a) $1s^22s^22p^63s^23p^5$ → Halogen

(b) $1s^22s^22p^63s^23p^63d^74s^2$ → Transition metal

(c) $1s^22s^22p^63s^23p^63d^{10}4s^24p^6$ → Transition metal

(d) $1s^22s^22p^63s^23p^63d^4s^1$ → Transition metal

Explanation :

Inert gas : These are the gases which lie in group 18.

Their general electronic configuration is: $ns^2np^6$ where n is the outermost shell.

Halogen : These are the elements which lie in group 17.

Their general electronic configuration is: $ns^2np^5$ where n is the outermost shell.

An alkali metal : These are the elements which lie in group 1.

Their general electronic configuration is: $ns^1$ where n is the outermost shell.

An alkaline earth metal : These are the elements which lie in group 2.

Their general electronic configuration is: $ns^2$ where n is the outermost shell.

Transition elements : They are the elements which lie between 's' and 'p' block elements. These are the elements which lie in group 3 to 12. The valence electrons of these elements enter d-orbital.

Their general electronic configuration is: $(n-1)d^{1-10}ns^{0-2}$ where n is the outermost shell.

(a) $1s^22s^22p^63s^23p^5$

The element having this electronic configuration belongs to the halogen family.

(b) $1s^22s^22p^63s^23p^63d^74s^2$

The element having this electronic configuration belongs to the transition family.

(c) $1s^22s^22p^63s^23p^63d^{10}4s^24p^6$

The element having this electronic configuration belongs to the transition family.

(d) $1s^22s^22p^63s^23p^63d^4s^1$

The element having this electronic configuration belongs to the transition family.

4 0

3 years ago

HURRYYY!!!!!!!!!!

vlabodo [156]

Im not sure but i think its 350. I really hope im right

8 0

3 years ago

What determines an element's chemical properties

Alik [6]

The three factors determine the chemical properties of an element:
The number and arrangement of electrons in an atom
The number of valence electrons
The number and arrangement of electrons

5 0

3 years ago

Read 2 more answers

What is the molar mass of (NH), CO? 138g 788 968 1448

aleksandr82 [10.1K]

Answer:

The molar mass of $(NH_{4})_{2}CO_{3}$ is 96.8 g/mol