1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Airida [17]
3 years ago
10

John dalton proposed a theory that all matter is made up of individuals particles which cannot be divided. what were those parti

cles?
Chemistry
1 answer:
juin [17]3 years ago
3 0
The particles are atoms, his theory is the atomic theory
You might be interested in
The vapor pressure of substance X is 100. mm Hg at 1080.°C. The vapor pressure of substance X increases to 600. mm Hg at 1220.°C
artcher [175]

Explanation:

The given data is as follows.

         P_{1} = 100 mm Hg or \frac{100}{760}atm = 0.13157 atm

         T_{1} = 1080 ^{o}C = (1080 + 273) K = 1357 K

         T_{2} = 1220 ^{o}C = (1220 + 273) K = 1493 K

         P_{2} = 600 mm Hg or \frac{600}{760}atm = 0.7895 atm

          R = 8.314 J/K mol

According to Clasius-Clapeyron equation,

                   log(\frac{P_{2}}{P_{1}}) = \frac{\Delta H_{vap}}{2.303R}[\frac{1}{T_{1}} - \frac{1}{T_{2}}

            log(\frac{0.7895}{0.13157}) = \frac{\Delta H_{vap}}{2.303 \times 8.314 J/mol K}[\frac{1}{1357 K} - \frac{1}{1493 K}]

          log (6) = \frac{\Delta H_{vap}}{19.147}[\frac{(1493 - 1357) K}{1493 K \times 1357 K}]

                0.77815 = \frac{\Delta H_{vap}}{19.147J/K mol} \times 6.713 \times 10^{-5} K

              \Delta H_{vap} = 2.219 \times 10^{5} J/mol

                                   = 2.219 \times 10^{5}J/mol \times 10^{-3}\frac{kJ}{1 J}

                                    = 221.9 kJ/mol

Thus, we can conclude that molar heat of vaporization of substance X is 221.9 kJ/mol.

4 0
3 years ago
In which situation would hydrogen bonding be present?​
sineoko [7]

Answer:

Water ?

Need more info.

Water is H_{2}<em>O</em>

Explanation:

6 0
2 years ago
Read 2 more answers
Polymerization is the process of linking smaller molecules to form long chains of higher molecular weight. True or False
quester [9]
True is correct answer.


Polymerization is the process of linking it has a smaller molecules to form has a long chains of higher molecular weight.

Hope it helped you.

-Charlie
6 0
3 years ago
Read 2 more answers
A chemistry student is given 700. mL of a clear aqueous solution at 26.° C. He is told an unknown amount of a certain compound
Alex73 [517]

Answer:

The correct answer is - yes, 4.57 g of solute per 100 ml of solution

Explanation:

The correct answer is yes we can calculate the solubility of X in the water at 22.0°C. The salt will remain after the evaporate from the dissolved and cooled down at 26°C.

Then, the amount of solute dissolved in the 700 ml solution at 26°C is the weighed precipitate: 0.032 kg = 32 g.

Then solublity will be :

32. g solute / 700 ml solution = y / 100 ml solution

⇒ y = 32. g solute × 100 ml solution / 700 ml solution = 4.57 g.

Thus, the answer is 4.57 g of solute per 100 ml of solution.

5 0
2 years ago
How many moles are found in 133 g of Mg3 N2
konstantin123 [22]
Magnesium nitride weighs 100.95 g/mol

133/100.95 = 1.32 mols
7 0
2 years ago
Read 2 more answers
Other questions:
  • How does the scientific process generally begin
    6·1 answer
  • How is weathering and erosion related?
    5·1 answer
  • What are the two factors that affect the strength of gravity
    12·1 answer
  • What is the molality of a solution made by dissolving 5.2 g of NaCl in 100 g of water?
    11·1 answer
  • Un gas ocupa un volumen de 1475 ml a la presión de 1145 hPa .Se le permite expandir, trabajando isotérmicamente, hasta que su pr
    10·1 answer
  • Propene is called an unsaturated hydrocarbon, why
    11·1 answer
  • Farmers use conservation practices such as crop rotation to insure that their crops are sustainable. Crop rotation is the proces
    13·1 answer
  • 3. The increased amount of salt near the equator is a result of what
    12·1 answer
  • A sample of polystyrene, which has a specific heat capacity of 1.880 J.g .°C , is put into a calorimeter (see sketch at right)
    7·1 answer
  • What are the three ways that an object can interact with a static field?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!