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
marin [14]
3 years ago
8

What are the hypotheses on which Dalton's atomic theory is based?

Chemistry
1 answer:
worty [1.4K]3 years ago
3 0

Answer:

 Dalton's theory are based on the two laws  that are: Law of conservation of mass and law of constant composition. This theory basically described their properties of atoms.

This theory state that all the atoms are made up of matter which are invisible and in the elements all the atoms are identical in mass and properties.

You might be interested in
I wanted known how many of the reaction below is energy released
Tema [17]

Answer:

2

Explanation:

In two reactions energy is released.

1) C₆H₁₂O₆ + 6O₂    →    6H₂O + 6CO₂ + heat

It is cellular respiration reaction.It involves the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.

Glucose + oxygen → carbon dioxide + water + 38ATP

2) 2H₂ + O₂   →    2H₂O  ΔH = -486 kj/mol

The given reaction is formation of water. In this reaction oxygen and hydrogen react to form water and 486 kj/mol is also released.

The reaction in which heat is released is called exothermic reaction.

Exothermic reaction:

The type of reactions in which energy is released are called exothermic reactions.

In this type of reaction energy needed to break the bonds are less than the energy released during the bond formation.

For example:

Chemical equation:

C + O₂   →  CO₂

ΔH = -393 Kj/mol

it can be written as,

C + O₂   →  CO₂ + 393 Kj/mol

Endothermic reactions:

The type of reactions in which energy is absorbed are called endothermic reactions.

In this type of reaction energy needed to break the bond are higher than the energy released during bond formation.

For example:

C + H₂O   →  CO  + H₂

ΔH = +131 kj/mol

it can be written as,

C +  H₂O  + 131 kj/mol  →  CO  + H₂

5 0
3 years ago
1 webbed feet <br> 2wing structure <br> 3beaks <br> 4 eye color
malfutka [58]
I believe it's webbed feet
7 0
3 years ago
Read 2 more answers
5) How many moles are in 5 Liters of H2 gas?
telo118 [61]
From 5 L to moles, just divide 5 by 22.4. I got 0.22 moles of H2.
From 5 moles to liters, just multiply 5 by 22.4. I got 112 L of H2. 
4 0
3 years ago
Someone help me please. It's due in 30 mins
max2010maxim [7]

Answer: permanent removal of hair by energy or heat

Explanation:

8 0
3 years ago
Which of the following phenomena would be associated with the Big Bang theory.
Murrr4er [49]

Answer: justin

Explanation:

It is becasue im rich right

3 0
2 years ago
Other questions:
  • Which is the smallest number?
    12·1 answer
  • A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?
    5·1 answer
  • Suppose a salt and a glucose solution are separated by a membrane that is permeable to water but not to the solutes. the nacl so
    14·1 answer
  • Aqueous hydrochloric acid will react with solid sodium hydroxide to produce aqueous sodium chloride and liquid water . suppose 1
    13·1 answer
  • The concentration of 1130+ in a solution is found to be 1.75 X 10-8 M 250C. Find [OH].
    11·1 answer
  • What is a goal of the planned mission MIRI?
    14·2 answers
  • I give brainliest pls help
    11·2 answers
  • What effect does temperature have on reaction rate?
    13·1 answer
  • A student is instructed to design a device that can allow one user to hear a voice of another surer a distance of 5 kilometers w
    5·1 answer
  • I what process does a solid change directly into a vapor​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!