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Fittoniya [83]
3 years ago
15

Lithium reacts spontaneously with bromine to produce lithium bromide. Write the balanced chemical equation for the reaction. (Us

e the lowest possible whole number coefficients. Omit states-of-matter from your answer.)
Please help
Chemistry
1 answer:
nekit [7.7K]3 years ago
3 0
Answer:
___________________________________________________
       
            "     2 Li + Br2<span> ----> 2 LiBr     "  .
___________________________________________________</span>
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Why is gunshot residue important for a forensic scientist? What are the potential complications with this type of evidence?
erik [133]
A residue from a gunshot is most likely gun powder, which tells you what kind of bullet was shot and the type of gun that was used to shoot the target/victim/person. Some complications may be that there is more than one gun or weapon which uses that residue, so it may be hard to pinpoint it and the bullet can't really tell you who it is unless there's DNA on the bullet, and the chemicals of the bullet may even destroy evidence.
3 0
3 years ago
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. A bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. What amount of energy, in joules, must be r
Tom [10]

Answer :  The energy released by an electron in a mercury atom to produce a photon of this light must be, 4.56\times 10^{-19}J

Explanation : Given,

Wavelength = 435.8nm=435.8\times 10^{-9}m

conversion used : 1nm=10^{-9}m

Formula used :

E=h\times \nu

As, \nu=\frac{c}{\lambda}

So, E=h\times \frac{c}{\lambda}

where,

\nu = frequency

h = Planck's constant = 6.626\times 10^{-34}Js

\lambda = wavelength = 435.8\times 10^{-9}m

c = speed of light = 3\times 10^8m/s

Now put all the given values in the above formula, we get:

E=(6.626\times 10^{-34}Js)\times \frac{(3\times 10^{8}m/s)}{(435.8\times 10^{-9}m)}

E=4.56\times 10^{-19}J

Therefore, the energy released by an electron in a mercury atom to produce a photon of this light must be, 4.56\times 10^{-19}J

3 0
4 years ago
A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume? Solution A: 1.31% (m
Zigmanuir [339]

Answer:

Are you in flvs, if so im prettyb sure if yo look on page 3 of lesson 1.04 it tells you the answer.

Explanation:

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3 years ago
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Georgia [21]

Answer:

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Explanation:

it is the only metal listed.

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4 years ago
During photosynthesis, plants take in carbon dioxide and water and convert it into glucose and oxygen. If a plant makes 30 grams
kiruha [24]

Answer:

A. 0.17 moles

Explanation:

Every 10 grams Glucose to mol = 0.05551 mol

30 moles= 0.166503, round up to .17

3 0
3 years ago
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