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Sloan [31]
3 years ago
9

Please help..... :((( The last part says group 2 if you’re wondering

Chemistry
1 answer:
weqwewe [10]3 years ago
6 0
Do you need help with all 3 questions or just the one that’s unanswered?
You might be interested in
How does the VSEPR theory explain molecular shape
natulia [17]

Answer:

to VSEPR theory, the shape of a molecule is related to the organization of the central atom's valence shell electrons. The valence shell electrons are all negatively charged and therefore are constantly repelling each other. This repulsion is what gives a molecule its three-dimensional shape.

3 0
3 years ago
Read 2 more answers
Two perfumes are released at the same time. If one is standing 7.5 m from the point of release. Perfume A (molar mass 275 g/mol)
natta225 [31]
According to Graham's Law of Diffusion," Diffusion of Gas is inversely proportional to square root of its Molecular Mass or Density".

                          rᵇ/rᵃ  =  \sqrt{da/db}
Or,
                          rᵇ/rᵃ  =  \sqrt{Ma/Mb}     ----- (1)
As, 
                          Ma  =  275 g/mol

                          Mb  =  205 g/mol

Putting Values in eq.1,

                          rᵇ/rᵃ  =  \sqrt{275/205}

                          rᵇ/rᵃ  =  1.15

Result:
          Perfume B will diffuse 1.15 times faster than Perfume A. Hence, Perfume B will be first smelled by the person.
6 0
3 years ago
What evidence supports conservation of matter?
Zinaida [17]

Answer:

i dont knoq

Explanation:

sorry that i couldnt help you

7 0
3 years ago
A
Aleksandr [31]

Answer:

D. Using a battery

3 0
3 years ago
From a scientific viewpoint, why do many desert dwellers elect to wear white or light-colored garments
alexandr1967 [171]
Darker colors absorb sunlight more, so it will become hotter. Lighter colored clothes will better reflect sun so they will be less hot.

Hope that helped
7 0
3 years ago
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