Answer: The number of molecules present in 2.10 moles of CO₂ is 1.264×10²⁴ molecules.
From Avogadro's hypothesis, we understood that:
1 mole of any substance = 6.02×10²³ molecules.
This implies that:
1 mole of CO₂ = 6.02×10²³ molecules
With the above information, we can obtain obtained the number of molecules in 2.10 moles of CO₂. This can be obtained as follow:
1 mole of CO₂ = 6.02×10²³ molecules
Therefore,
2.10 moles of CO₂ = 2.10 × 6.02×10²³
2.10 moles of CO₂ = 1.264×10²⁴ molecules
Thus, the number of molecules present in 2.10 moles of CO₂ is 1.264×10²⁴ molecules
Complete Question
The complete question is shown on the first uploaded image
Answer:
The kinetic order in HI is x= 2
Explanation:
Generally the slow step in a reaction mechanism is the rate determining step
Now with this knowledge at the back of our minds we can see that the number of moles of HI i s 2 which implies that the order of HI is 2m
So we can represent the rate law as
![Rate = k [CH_3 CHCH_2][HI]^2](https://tex.z-dn.net/?f=Rate%20%20%3D%20%20k%20%20%5BCH_3%20CHCH_2%5D%5BHI%5D%5E2)
hence
x = 2
1. The name of this element is Carbon because there are 6 electrons in the shell.
2. Sorry I didn't learn that. And I don't know.
1. A metal is a solid substance, usually hard. On the other hand, a non-metals is a solid or gaseous material, in which the metallic properties are absent.
2. When a new substance is formed at that time we can understand that chemical reaction has taken place. It can't be reversed.
4. Neutron = no charge
Electron = negative
Proton= positive
5. Nucleus has a positive charge.
6. An atom is bigger. Because electrons are what takes up space in atoms, the result is that the size of the biggest filled orbital determines the size of the atom or ion.
To get the number of formula units given 0.14 mg NaCl. We convert first the mass to moles by dividing by the molar mass, then multiplying by Avogadro's number. The final answer is 1.44 x 10^18 formula units.
Answer: B) Increasing the air pressure
Explanation:
