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kupik [55]
3 years ago
10

There is a meme in the image i have what does it mean

Chemistry
2 answers:
Gelneren [198K]3 years ago
5 0

Answer:

The 4s2 is preventing 3d10 from following 1s2 2s2 2p6 3s2 3p6.

Explanation:

the meme is quite common.

Lubov Fominskaja [6]3 years ago
4 0

Answer:

It’s alien language

Explanation:

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Because it relates to more than one branch of knowledge. It combines more than one academic disiplines.
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The main reason that scientists would do a descriptive investigation is that _____. A. they don't like doing normal experiments
andre [41]

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d) They're studying something for which they cant do an experiment

Explanation:

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The __________________ of a solution tells how many moles of solute are present per liter.
Stels [109]

Answer:

The MOLARITY of a solution tells how many moles of solute are present per liter

Explanation:

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Write a balanced equation formed when the following elements react with oxygen:a)Zinc
Ainat [17]

Explanation:

a) when zinc burnt in oxygen.

2Zn + O2 -----∆-----> 2ZnO(black residue)

b) when carbon burnt in oxygen.

C+O2----∆---> CO2.

c) when sulphur burnt in oxygen.

S+O2-----∆-----> SO2.

d) when Calcium burnt in oxygen.

2Ca+O2-----∆-----> 2CaO(black residue)

e) when Magnesium burnt in oxygen.

2Mg+O2-----∆----> 2MgO.

f) when sodium burnt in oxygen.

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hope all these reactions help you.

4 0
2 years ago
Determine the number of moles of C5H12 that are contained in 357.4 g of the compound.
AlladinOne [14]

Answer: 4.96 moles

Explanation:

C5H12 is the chemical formula for pentane, the fifth member of the alkane family.

Given that,

number of moles of C5H12 = ?

Mass in grams = 357.4 g

Molar mass of C5H12 = ?

To get the molar mass of C5H12, use the atomic mass of carbon = 12g; and Hydrogen = 1g

i.e C5H12 = (12 x 5) + (1 x 12)

= 60g + 12g

= 72g/mol

Now, apply the formula

Number of moles = Mass / molar mass

Number of moles = 357.4g / 72g/mol

= 4.96 moles

Thus, 4.96 moles of C5H12 that are contained in 357.4 g of the compound.

4 0
3 years ago
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