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svp [43]
3 years ago
6

If temperature is increased , the number of collisions per second

Chemistry
1 answer:
AfilCa [17]3 years ago
4 0

Answer: when the temperature is increased, the number of collisions per second increases.

Explanation:

the rate of collisions and the temperature is directly proportional. If the  energy of the gas particles is boosted by using the temperature, the chances of the particles bumping into each other due to the high energy increases, thus increasing the number of collisions. This also increases the rate of reaction. Thus when temperature is increased the number of collisions also increases.

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Which of the following is a statement of Hess's law?
attashe74 [19]

Answer:

C

Explanation:

the enthalpy of reaction is independent of the reaction path

7 0
2 years ago
Which is the most polar bond?<br><br> a. H-Se <br> b. P-Br <br> c. N-I <br> d. No right answer.
docker41 [41]

Answer:

The answer to your question is: b. P - Br

Explanation:

Difference of electronegativities from the periodic table. The one with the highest electronegativity will be the most polar.

a.

H =  2.2

Se = 2.55

Electronegativity = 2.55 - 2.2 = 0.35

b.

P = 2.19

Br = 2.96

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c.

N = 3.04

I = 2.66

Electronegativity = 3.04 - 2.66 = 0.38

4 0
2 years ago
A compound has a molar mass of 86.0 g/mol and an empirical formula of C3H7 what is the molecular formula
zmey [24]
The formula for the molecular formula is molar mass/ empirical formula

So, the empirical formula of C3H7 is equal to C*3 + H*7 which is equal to 12*3 +  7. Then use the molecular formula = 86 / (12*3+7) = 2

Therefore, the molecular formula is 2 times the empirical formula which is C6H14.
3 0
3 years ago
PLZ HELP ILL MARK BRAINIEST IF CORRECT!!!!!!!!!
Margaret [11]
4FeS2 + 11O2-> 2Fe2O3 + 8SO2

Not sure.... I think this is it
5 0
3 years ago
Why do the spectra of the molecular species show broader bands compared to atomic spectra such as that seen for the hydrogen ato
Olenka [21]

Explanation:

The  atomic spectrum is more like the transitions of electrons among electronic energy levels in an isolated atom. Atomic spectrum is mainly affected by interaction of the transitioning electrons between the nuclei spins and between the other electrons in the same atom.

However, molecular spectrum involve transition of electrons in molecules with two and more atoms(it can be in the same or different). Also, the valence electrons are now in different orbitals than that of  the atomic orbitals and the orbital structure has changed the electronic transitions are different

8 0
3 years ago
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