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Alex_Xolod [135]
3 years ago
13

HELP ASAP PLS!!!!!!!!!!!!!!!!!!!!!!!

Chemistry
1 answer:
Rudiy273 years ago
5 0

Answer:correcting errors

Explanation:

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You have 100 grams of rubidium bromide (RbBr). How many moles do you have?
Margarita [4]

Answer:

a) 0.61 mol

Explanation:

165.3718 g Rubidium Bromide = 1 mol

100 g  Rubidium Bromide =  1/165.3718  x   100

                                          =  0.61 mol

6 0
3 years ago
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Predict the missing particle or nuclide.
Advocard [28]

Answer:

beta minus emission

Explanation:

Beta radiations:

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They can travel in air in few meter distance.

These radiations can penetrate into the human skin.

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The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.

8 0
3 years ago
The metal atoms in iron are held together by what
Gwar [14]
They held together by metallic bonds.


Hopefully this has helped! :)
3 0
3 years ago
The vapor pressure of dichloromethane, c h 2 c l 2 , at 0 ∘ c is 134 mmhg . the normal boiling point of dichloromethane is 40. ∘
sladkih [1.3K]
<span> the </span>vapor pressure<span> of the liquid at a temperature T</span>2<span> ... Now, </span>it's<span> important to realize that the </span>normal boiling point<span> of a substance is measured at an atmoshperic ... ΔHvap=−ln(</span>134mmHg760mmHg<span> )⋅8.314J mol−1K−1 (1(273.15+</span>0)−1(273.15+40))K−1 ... Give equations that can be used tocalculate<span> the .

Now try it yourself :)</span>
8 0
3 years ago
I don't know how to do this, pls help!
Aliun [14]
Cations from smallest to largest
Li⁺ ,Na⁺, K⁺ (from Periodic Table, the bigger number of period, the bigger size, of atom, so the bigger size of cation)

1) LiF smaller  cation then KF
1,036                                 <span>853
</span><span>The lattice energy increases as cations get smaller, as shown by LiF and KF.
</span><span>I think this one should be correct answer, because the compared substances have also the same anion, and we can compare cations in them.

2) The same cation Li , so wrong statement.

3)</span>The same cation Na , so wrong statement.

4) NaCl smaller cation then KF
  786                                   853
7 0
3 years ago
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