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beks73 [17]
2 years ago
11

Which postulate of daltons atomic model was later changed and why

Chemistry
1 answer:
bearhunter [10]2 years ago
5 0

Answer:

The postulate of Dalton's atomic theory that an atom is an indivisible particle and cannot be subdivided into smaller particles was later changed because atoms can be divided into neutrons, protons and electrons.

Explanation:

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How much concentrated 18M sulfuric acid is needed to prepare 250mL of a 6.0M solution?
slavikrds [6]
C₁ * V₁ = C₂ * V₂ 

18 * V₁ = 6.0 * 250

18 V₁ = 1500

V₁ = 1500 / 18

V₁ = 83.33 mL

hope this helps!


5 0
3 years ago
The mass of cupric sulfate needed to make .5 liters of a .5M solution is
dalvyx [7]

Answer:

C

Explanation:

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3 years ago
3. How does<br> photosynthesis affect<br> your daily life?
olga2289 [7]

Answer:

to create oxygen and energy in the form of sugar

Explanation:

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7 0
2 years ago
A gas sample is held at constant temperature. What happens to the pressure of the sample if the volume is doubled and the number
Iteru [2.4K]

Answer:

If the volume is doubled and the number of molecules is doubled, pressure is unchanged

Explanation:

Step 1: Data given

Temperature = constant

Volume will be doubled

Number of molecules will be doubles

Step 2:

p*V = n*R*T

⇒ gas constant and temperature are constant

Initial pressure = n*R*T / V

Initial pressure = 2*R*T/2

Initial pressure =  RT

Final pressure = 4*RT / 4

Final pressure = R*T

If the volume is doubled and the number of molecules is doubled, pressure is unchanged

3 0
3 years ago
All of the following conditions of STP are true except A. 101.3 kPa B.3.81kPa.L/mol.K C. 24.2 L D. 273.15 K
Tasya [4]
The answer is c 24.2l
6 0
2 years ago
Read 2 more answers
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