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horrorfan [7]
3 years ago
7

Dalton's contribution was different from thatof the ancient Greeks who populated the existence of atoms.Point out the difference

between the two ideas.
Chemistry
1 answer:
DiKsa [7]3 years ago
3 0

Answer:

See explanation

Explanation:

The Greeks held the belief that atoms where spherical. However, they thought that atoms of elements where different for the different states of mater. Dalton brought about the idea that the atoms of the same element are exactly alike irrespective of the physical state of the system.

Dalton introduced the idea that chemical reactions result from rearrangement of atoms in molecules. This idea was not captured by the early Greeks.

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Answer:

Acidic

Explanation:

Please kindly check attachment for the detailed step by step solution of the given problem.

7 0
3 years ago
Ionization changes identity of substance?
jarptica [38.1K]

Answer:yes because due to ionization atom makes chemical bonds with other atoms, which makes change in the properties of atoms

Explanation:

8 0
4 years ago
What are the molality and mole fraction of solute in a 22.3 percent by mass aqueous solution of formic acid (HCOOH)?
Vanyuwa [196]

Answer:

Mole fraction for solute = 0.1, or 10%

Molality = 6.24 mol/kg

Explanation:

22.3% by mass → In 100 g of solution, we have  22.3 g of HCOOH

Mass of solution = 100 g

Mass of solute = 22.3 g

Mass of solvent = 100 g - 22.3g = 77.7 g

Let's convert the mass to moles

22.3 g . 1mol/ 46 g = 0.485 moles

77.7 g. 1mol / 18 g = 4.32 moles

Total moles = 4.32 moles + 0.485 moles = 4.805 moles

Xm for solute = 0.485 / 4.805 = 0.100 → 10%

Molality → mol/ kg → we convert the mass of solvent to kg

77.7 g.  1 kg / 1000g = 0.0777 kg

0.485 mol / 0.0777 kg = 6.24 m

6 0
3 years ago
Read 2 more answers
No clue what do to do so help please lol
Julli [10]
I don’t know what the answer is just need points sorry
8 0
3 years ago
if a sample of ideal gas takes up 5.00 L at 300 K and 1.5 atm, what volume will it Take up at 400 K and 1.5 atm?
zysi [14]

Answer:

The volume will be 6, 67 L

Explanation:

We use the gas formula, which results from the combination of the Boyle, Charles and Gay-Lussac laws. According to which at a constant mass, temperature, pressure and volume vary, keeping constant PV / T:

P1xV1/T1 = P2 x V2/T2

V2= ((P1xV1/T1)xT2)/P2

V2=((1,5 atm x5 L/300K)x400K)/1,5 atm

V2=6, 67 L

6 0
4 years ago
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