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3 years ago

Which is not a property of a pure substance

Chemistry

1 answer:

NeX [460]3 years ago

3 0

Pure substances are substances that are made of only one type of atom or molecule....

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Which of the following is a way that crystals can form in nature

Leona [35]

I only knwi one way which is if water evaporates from a mixture

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4 years ago

What is the difference between an element and a compound? (p.s. it due in 5 mins ASAP so hurry.)

Lubov Fominskaja [6]

Explanation:

An element just has one-type atoms/atom (e.g. O2). Meanwhile, a compound is a variety of atoms (e.g. H2O).

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3 years ago

Using complete subshell notation (not abbreviations, 1s 22s 22p 6 , and so forth), predict the electron configuration of each of

dybincka [34]

Answer: The electronic configuration of the elements are written below.

Explanation:

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.

Number of electrons in an atom is determined by the atomic number of that atom.

For the given options:

Option a: Carbon (C)

Carbon is the 6th element of the periodic table. The number of electrons in carbon atom are 6.

The electronic configuration of carbon is $1s^22s^22p^2$

Option b: Phosphorus (P)

Phosphorus is the 15th element of the periodic table. The number of electrons in phosphorus atom are 15.

The electronic configuration of phosphorus is $1s^22s^22p^63s^23p^3$

Option c: Vanadium (V)

Vanadium is the 23rd element of the periodic table. The number of electrons in vanadium atom are 23.

The electronic configuration of vanadium is $1s^22s^22p^63s^23p^64s^23d^3$

Option d: Antimony (Sb)

Antimony is the 51st element of the periodic table. The number of electrons in antimony atom are 51.

The electronic configuration of antimony is $1s^22s^22p^63s^23p^64s^23d^{10}4p^65s^24d^{10}5p^3$

Option e: Samarium (Sm)

Samarium is the 62nd element of the periodic table. The number of electrons in samarium atom are 62.

The electronic configuration of samarium is $1s^22s^22p^63s^23p^64s^23d^{10}4p^65s^24d^{10}5p^66s^24f^6$

Hence, the electronic configuration of the elements are written above.

4 0

3 years ago

A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure

ohaa [14]

Answer:

It would probably be, something that can take up moisture to test it.

Explanation:

(to see if it can evaporate)

4 0

2 years ago

Read 2 more answers

NaOH is typically standardized using potassium hydrogen phthalate (KHP).

DaniilM [7]

Answer:

Na(OH)²

Explanation:

We look for the charges in the periodic table

6 0

3 years ago