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lana66690 [7]
3 years ago
15

In h-atom if x is radius of first bohrs orbit de broglie wavelength of an atom in 3rd orbit is a.3πx b.6πx c.9x/2 d.x/2

Chemistry
1 answer:
Step2247 [10]3 years ago
5 0

Answer:

can you type question properly.

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Acetone can be easily converted to isopropyl alcohol by addition of hydrogen to the carbon–oxygen double bond. calculate the ent
Vanyuwa [196]
<span>Answer: Enthalpy is delta-H- We need to look at the molecule and determine which bonds are broken adn which bonds are formed. Bonds that are broken are H-H (from the H2 molecule) and the C=O from acetone. their energies add up like this: 436 kJ + 745 kJ = 1181 kJ looking at the bonds formed, these are C-O, O-H, and C-H. these add up to 1229 kJ solving for delta H by taking the sum of the broken bonds and subtracting the sum of the formed bonds, like so: 1181 - 1229 = -48 kJ</span>
4 0
4 years ago
_Al(NO3)3 +_(NH4)3 P04_AlPO4+_ NH, NO3<br>balancing equations​
astra-53 [7]

Answer:

Al(NO₃)₃ + (NH₄)₃PO₄ —> AlPO₄ + 3NH₄NO₃

The coefficients are: 1, 1, 1, 3

Explanation:

__Al(NO₃)₃ + __(NH₄)₃PO₄ —> __AlPO₄ + __NH₄NO₃

The above equation can be balance as illustrated below:

Al(NO₃)₃ + (NH₄)₃PO₄ —> AlPO₄ + NH₄NO₃

There are 12 atoms of H on the left side and 4 atoms on the right side. It can be balance by writing 3 before NH₄NO₃ as shown below:

Al(NO₃)₃ + (NH₄)₃PO₄ —> AlPO₄ + 3NH₄NO₃

Now the equation is balanced.

The coefficients are: 1, 1, 1, 3

4 0
3 years ago
Question 1 of 10
Alina [70]

D. The total number of gas molecules will decrease.

Explanation:

According to Le Chatelier's principle, an increase in pressure in a system involving gases will cause the total number of gas molecules to decrease.

Le Chatelier's principle states that "if any conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".

In a reaction involving gases, a change in pressure affects only reactions in a gaseous phase.

An increase in pressure on an equilibrium system will shift the position of the equilibrium to the side having smaller volume and vice versa.

learn more:

Equilibrium brainly.com/question/10838453

#learnwithBrainly

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3 years ago
Determine the number of moles of hydrogen atoms in each sample.
schepotkina [342]
The answer is going to be d
8 0
3 years ago
In an energy diagram for a chemical reaction, the reactants are always plotted to the left of the products.
Dominik [7]

the answer is false at lest that is what i know

8 0
4 years ago
Read 2 more answers
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