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
Anit [1.1K]
3 years ago
14

Dalton’s atomic theory included which idea?

Chemistry
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

Everything is composed of atoms, that are the indivisible building blocks of matter that cannot be destroyed. All atoms of an element are identical.

Explanation:

You might be interested in
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the equation:
weqwewe [10]

Answer:

D) [PCl5]=0.00765M,[PCl3]=0.117M,and [Cl2]=0.0.117M

Explanation:

Based on the reaction:

PCl₅(g) ⇄ PCl₃(g) + Cl₂(g)

And knowing:

Kc = [PCl₃] [Cl₂] / [PCl₅] = 1.80

When you add PCl₅ into a flask, this gas will react producing PCl₃ and Cl₂ until [PCl₃] [Cl₂] / [PCl₅] = 1.80

This could be written as:

[PCl₃] = X

[Cl₂] = X

[PCl₅] = 0.125M - X

<em>Where X represents the moles of PCl₅ that react, </em><em>reaction coordinate.</em>

Replacing in Kc expression:

[PCl₃] [Cl₂] / [PCl₅] = 1.80

[X [X] / [0.125 - X] = 1.80

X² = 0.225 - 1.80X

0 = -X² -1.80X + 0.225

Solving for X:

X = -1.9M → False solution, there is no negative concentrations

X = 0.11735M → Right solution.

Replacing, concentrations in equilibrium are:

[PCl₃] = X

[Cl₂] = X

[PCl₅] = 0.125M - X

[PCl₃] = 0.117M

[Cl₂] = 0.117M

[PCl₅] = 0.00765M

And right option is:

<h3>D) [PCl5]=0.00765M,[PCl3]=0.117M,and [Cl2]=0.0.117M</h3>
7 0
3 years ago
Explain why scientists find the particulate matter of theory useful
BARSIC [14]

This idea has historical significance. The ancient Greek philosopher Democritus (born 460 BCE), who held that everything is composed of small particles moving in empty space, is credited with developing the first hypothesis we have about the microscopic universe. He had some concrete proof for this, such the fact that items like a new loaf of bread or a rose may give off a scent even when they are far from the source. Being a materialist, he thought that these odors originated from actual material particles released by the bread or the rose, rather than being purely a type of magic. He reasoned that these particles must float through the air, with some of them maybe landing in your nose where you can smell them immediately. This still makes sense in modern times. But many of us now have quite different perspectives on these "particles."

Thank you,

Eddie

6 0
2 years ago
What is the correct name for the cyclic alkane shown on the right?
Soloha48 [4]

Answer: C

Explanation:

4 0
3 years ago
Read 2 more answers
in this cut-away image of an atom, where is the red arrow most likely pointed at the greatest probability of locating an electro
emmasim [6.3K]

Answer:

c

Explanation:

3 0
3 years ago
Read 2 more answers
O que é VAPORIZAÇÃO, CONDENSAÇÃO, SUBLIMAÇÃO, FUSÃO, SOLIDIFICAÇÃO
ipn [44]

Answer:

Fusão: a substância volta do sólido para o líquido. Condensação: a substância muda de um gás para um líquido. Vaporização: a substância muda de líquido para gás. Sublimação: a substância muda diretamente de um sólido para um gás sem passar pela fase líquida.

7 0
3 years ago
Other questions:
  • What types of compounds do not dissolve in water?
    13·1 answer
  • What is the difference between a solute and a solvent?
    5·1 answer
  • Which of the following is considered to be a chemical property of matter?
    11·1 answer
  • What is the volume of a 0.0355mol/L calcium hydroxide solution required to react completely with 50.0mL of 0.250mol/L aluminum s
    5·1 answer
  • A gas is contained in a thick-walled balloon. When the pressure changes from 319 mm Hg to 215 mm Hg, th volume changes from 0.55
    9·2 answers
  • Draw the best Lewis structure for NH3 by filling in the bonds, lone pairs, and formal charges. (Assign bonds, lone pairs, radica
    8·1 answer
  • What happens to a reducing agent during a redox reaction?
    11·1 answer
  • How come there is only 3 C5H12 isomers?
    5·1 answer
  • Consider the following hypothetical molecular collisions and predict which of the following will form potential products, given
    8·1 answer
  • Calculate the number of moles of sulfuric acid in the total volume you used in the lab (i.e., 8.00 mL). Hint: Use the methodolog
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!