3 years ago

What is the noble-gas electron configuration for bromine?

Chemistry

1 answer:

marshall27 [118]3 years ago

5 0

My Answer: (Ar) 3d10 4s2 4p5

Hope I helped! :D

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Helpppppp please please

polet [3.4K]

What do we do? hehehehe

6 0

3 years ago

What is the fraction of the hydrogen atom's volume that is occupied by the nucleus? the bohr radius is 0.529×10−10m?

Arturiano [62]

Volume of a sphere = 4/3 x pi x r^3

When put a fraction of volume constant 4/3 x pi cancels out.

So only cube of radii remains.

Radius of proton = 10^-15 m (Fact; remember it)

Radius of total Hydrogen atom = 0.529 × 10^−10 m

Fraction of Volumes : R'^3/R^3 = (R/R)^3

Fraction = ((10^-15)/(0.529 × 10^−10m.))^3= (1/52900)^3 =

6.755 x 10^-15

6 0

3 years ago

Write a balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic aqueous solution. Be su

Vesna [10]

Answer:

Balanced half-reaction: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Explanation:

Balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic solution should be written in the following step-by-step manner:

Half-reaction: $O_{2}(g)\rightarrow H_{2}O_{2}(aq.)$

Balance H and O in basic medium: $O_{2}(g)+2H_{2}O(l)\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Balance charge: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Balanced half-reaction: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

7 0

4 years ago

Which statement describes the physical property of density? 100 points people!

kumpel [21]

Answer:

Explanation:

A is length

B is Reflection

C Mass

D is Density

A B can be eliminated immediately and you will learn the rest in school

Hope it helps!! :)

3 0

3 years ago

Help help help help help help help help help help please!!! worth 20 points please helppppp!!!!

kvasek [131]

Explanation:

here

Al is 2

so is 6

and more you can do it

4 0

3 years ago