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Evgen [1.6K]
3 years ago
5

Suggest 2 reasons why the noble gases become less ideal in their behaviour down the group from helium to xenon.

Chemistry
1 answer:
Elenna [48]3 years ago
4 0
Reason1: electrons on farther layers become free easyer
2nd reason: volume of atoms grows (from Helium to Xeon) so instead  of boyle-mariot law equation (PV=vRT) is  more accurate to use van der walls equations that adds to the boyle-mariot equation the volume occupied by the atoms of the gas to the volume of the space between the atoms P(Vm-b)=vRT
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Cellular respiration occurs? (2 points)
Nataly_w [17]

Answer:

in plant and animal cells

Explanation:

It happens in both and occurs in the mitochondria.

6 0
3 years ago
Read 2 more answers
What statements are always true about limiting reactants?
alisha [4.7K]

Answer:

5.The limiting reactant is completely used up in the reaction

Explanation:

The limiting reactant is completely used up in the reaction is the correct answer because a limiting reactant is a reactant in chemical reaction that is completely consumed or used up in the chemical reaction. Limiting reactant when it is completely used up limits the amount of products that will be formed. The reaction will be halted or will stop when the limiting reactant is totally used up.

7 0
3 years ago
If there are two elements in the same group, what is the same about them? Atomic mass, or they have the same number of valence e
Mila [183]

Answer:

Same number of valence electrons

Explanation:

The way that the periodic table is designed is so that all elements in the same group will have the same number of valence electrons. This is because elements can have the same number of valence electrons despite having different totals of electrons, because the valence electrons can reside in any valence shell.

Atomic mass changes for every element, and the elements get heavier the further down the table you go, so it is not atomic mass.

Hope this helped!

8 0
3 years ago
Can somebody please help me with this? Anything will help. Thank you.
andriy [413]
<span>R=K[NO]²[Cl2]</span><span>¹
When we look at the rate of reaction formula,
we can see exponent of [NO] =2,  that means that order of reaction with respect to NO equals 2.
We can see that exponent of [Cl2] =1, that means that order of reaction with respect to Cl2 equals 1.
Overall order of reaction = 2+1 = 3

If concentration of NO is tripled, then
</span><span>R=K[NO]²[Cl2]
</span>R1=K(3[NO])²[Cl2]=9K[NO]²[Cl2]=9R.
If the concentration of NO is tripled, then rate will increase 9 times.

8 0
3 years ago
Experimental value of acceleration due to gravity is found to be
KiRa [710]

Answer:

0.33%

Explanation:

From the question given above, the following data were obtained:

Experimental value = 9.842 m/s²

Accepted value = 9.81 m/s²

Percentage error =?

The percentage error in the calculation can be obtained as follow:

Percentage error = |Experimental – Accepted| / Accepted value × 100

Percentage error = |9.842 – 9.81| / 9.81 × 100

Percentage error = 0.032 / 9.81 × 100

Percentage error = 0.33%

Therefore, the error in the calculation is 0.33%

7 0
3 years ago
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