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charle [14.2K]
3 years ago
10

Please help! It’s due today. I’ll give brainliest

Chemistry
2 answers:
MArishka [77]3 years ago
5 0

Answer:

look at it is the correct answer because if a new gas has formed bubbles will how or change of colour so look at it

Explanation:

zavuch27 [327]3 years ago
3 0
Iiiiii you guys have to have the kids tomorrow so you
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Write a nuclear reaction for the neutron-induced fission of u−235 to form xe−144 and sr−90.
rusak2 [61]

Answer:

235/92U+10n→144/54Xe+90/38Sr+2/10n

Explanation:

  • The nuclear reaction for the neutron-induced fission of u−235 to form xe−144 and sr−90 is represented by;

235/92U+10n→144/54Xe+90/38Sr+2/10n

  • In nuclear fission reactions a heavy nuclide is split into two light nuclides and is coupled by the release of energy.
3 0
3 years ago
You have a 5-liter container with 1.30 x 1024 molecules of ammonia gas (NH3) at STP.
bogdanovich [222]

Answer:

3). 1.30 × 10^(24) molecules

Explanation:

From avogadro's law which state that equal volume of all gases at the same temperature and pressure contain the same number of molecules.

We can relate it to this question as;

V₁/n₁ = V₂/n₂

Where;

V₁ is initial volume

n₁ is initial number of molecules

V₂ is final volume

n₂ is final number of molecules

Thus at STP, we have V₁ = V₂ and as such Plugging in the relevant values gives;

5/(1.30 x 10^(24)) = 5/n₂

n₂ = 1.30 x 10^(24) molecules

6 0
2 years ago
The standard unit (SI) for mass is
telo118 [61]
The kilogram is the si
6 0
3 years ago
How are black holes connected to Elements?
bonufazy [111]
They just are very cute tho and cute and funny and
7 0
3 years ago
Which compound contains ionic bonds?<br> 1. N₂O<br> 2.Na2o<br> 3. co<br> 4.CO2
Molodets [167]
Answer:
2. Na2O

Reasoning:
Na (soduim) is the only metal out of all the elements in the answer choices, and is bonded with oxygen, a nonmetal, therefore creating an ionic bond.
3 0
3 years ago
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