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Rashid [163]
3 years ago
7

I need help with this

Chemistry
2 answers:
ipn [44]3 years ago
6 0
Can’t see it properly:(
satela [25.4K]3 years ago
4 0
Can you show it again I can barely see it
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Determine the empirical formula for a compound that contains c, h and o. it contains 52.14% c and 34.73% o by mass.
Travka [436]
H %= 100- (52.14 + 34. 73) equals 13.13 %
Assuming 100 g of this compound
Mass H= 13.13 g
Moles H= 13.13 g ÷ 1.008g/ moles= 13

Mass C= 52.14 g
Moles C= 52.14 g ÷ 12.011 g/ moles= 4

The empirical formula is C4H1302
3 0
4 years ago
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C. 2.86 g
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3 years ago
What processes break down and build up Earth's surfaces?​
lubasha [3.4K]
Weathering and Erosion I’m pretty sure
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3 years ago
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draw the lewis structure for CO2, H2CO3, HCO3-, and CO3 2-.Rank these in order of increasing attraction to water molecules. Expl
gavmur [86]

Answer:

The structures are attached in file.

Hydrogen bonding and intermolecular forces is the reason for ranks allotted.

Explanation:

In determining Lewis structure, we calculate the overall number of valence electrons available for bonding.  Making carbon (the least electronegative atom) the central atom in the structure, we allocate valence electrons until each atom has achieved stability.

In order of decreasing affinity to water molecules:

CO_{3}^{2-}  > HCO_{3} ^{2-} > H_{2} CO_{3}

This is due to the fact that the CO_{3}^{2-}will accept protons more readily than the bicarbonate ion, HCO_{3} ^{2-}. Carbonic acid, H_{2} CO_{3} will not accept any more protons, hence it is the least attractive to water molecule, even though soluble.

3 0
3 years ago
Which statement is true about covalent AND ionic bonds?
Vera_Pavlovna [14]

Answer:

1

Explanation:

ionic is transfer of electrons from metal to non metal while covalent is sharing electrons between two non metals

6 0
3 years ago
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