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dedylja [7]
3 years ago
12

What did Dalton’s atomic theory teach

Chemistry
2 answers:
sweet-ann [11.9K]3 years ago
6 0

Answer:

  • All matter is composed of atoms.
  • Atoms are not destructible.
  • Compounds formation occur by the combination of one or different types of atoms
  • In the chemical reactions, atoms are rearranged.
  • The atom of the same elements are similar in size and properties and the Atoms of the different elements are different in size and properties.

Explanation:

  • <u>John Dalton has developed the Dalton atomic theory.</u>
  • Dalton atomic theory was the first to explain that all matters composed of atoms and its properties, the atom as the smallest particle which cannot be destroyed and damaged.
  • This theory was based on the <u>law of conservation of mass and law of constant composition.</u>
  • His theory was accepted by many scientists.

Aleks04 [339]3 years ago
5 0

Answer:

the smallest unit of matter is the atom

Explanation:

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What is the missing word in the word equation below?
ss7ja [257]

Answer:

sodium carbonate

Explanation:

Sodium hydrogen carbonate (also known as sodium bicarbonate or bicarbonate of soda) has the chemical formula NaHCO3. When it is heated above about 80°C it begins to break down, forming sodium carbonate, water and carbon dioxide. This type of reaction is called a thermal decomposition.

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8 0
2 years ago
The following characteristics describe which type of mixture, homogeneous or heterogeneous? The substance is mixed uniformly thr
alexira [117]
The correct answer to this question is letter "A. homogeneous mixture." The following characteristics describe the type of mixture, which is a homogeneous mixture. The substance is mixed uniformly throughout and each part of <span>the substance contains the same ratio of materials with the same properties</span>
3 0
3 years ago
If there are three methyl groups on the same carbon, what is the prefix<br> used?
Tanzania [10]

Answer:

tri

Explanation:

1-nothing

2-di

3-tri

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6 0
3 years ago
C12H22011+1202--&gt;12CO2+11H20
kogti [31]

Answer:

0.185moles

Explanation:

Given parameters:

Volume of O₂  = 49.8L

Unknown:

Number of moles of sucrose required  = ?

Solution:

We can assume that the reaction takes place at standard temperature and pressure.

From this, we can find the number of moles of oxygen that reacted and extrapolate to that of sucrose.

Chemical equation;

           C₁₂H₂₂0₁₁  +  120₂   →   12CO₂   +   11H₂0

Number moles  = \frac{volume of gas}{22.4}   at STP

Number of moles of oxygen gas = \frac{49.8}{22.4}   = 2.22moles

           12 moles of oxygen gas combines with  1 mole of sucrose

       2.22 moles of oxygen gas will combine with \frac{2.22}{12}   = 0.185moles

4 0
3 years ago
Consider the following mechanism.
solong [7]

Answer :

(a) The overall equation is:

ClO^-(aq)+I^-(aq)\rightarrow Cl^-(aq)+IO^-(aq)

(b) The intermediates are  :

OH^-(aq),HClO(aq)\text{ and }HIO(aq)

Explanation :

<u>Part (a) :</u>

(1) ClO^-(aq)+H_2O(l)\rightarrow HClO(aq)+OH^-(aq)   (fast)

(2) I^-(aq)+HClO(aq)\rightarrow HIO(aq)+Cl^-(aq)    (slow)

(3) OH^-(aq)+HIO(aq)\rightarrow H_2O(l)+IO^-(aq)   (fast)

By adding the three equations and cancelling the common terms on both side, we will get the overall equation.

ClO^-(aq)+I^-(aq)\rightarrow Cl^-(aq)+IO^-(aq)

<u>Part (b)  :</u>

Intermediates are generated and consumed in the mechanism and do not include in the overall equation.

Since, intermediates will not include in the overall mechanism.

The intermediates are  :

OH^-(aq),HClO(aq)\text{ and }HIO(aq)

7 0
3 years ago
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