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aleksklad [387]
2 years ago
7

닭이 먼저냐 달걀이 먼저냐. 설명.​

Chemistry
2 answers:
k0ka [10]2 years ago
6 0

Answer:

계란은 확실히 닭보다 먼저 나왔지만 닭 계란은 그렇지 않았습니다. 그러나 진화론적 증거에 따라 절대적으로 한 편을 선택해야 한다면 우리는 팀 에그에 있습니다..

Explanation:

도움이 되었기를 바랍니다..

미리 환영합니다!!

(;ŏ﹏ŏ)(ㆁωㆁ)

docker41 [41]2 years ago
3 0

Answer:

Im not quite sure coz u can't have one without the other. But of I'm to pick a side Im team egg

Explanation:

Hope That THIS IS HELPFUL

HAVE A GREAT DAY.

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Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will
stiks02 [169]

The reaction between copper II chloride and sodium sulfide as well as lead II nitrate and potassium sulfate both produce precipitates.

The solubility of a substance in water is in accordance with the solubility rules.  It is possible that a solid product may be formed when two aqueous solutions are mixed together. That solid product is referred to as a precipitate.

Now, we will consider each reaction individually to decode whether or not a precipitate is possible.

  • In the first reaction, we have; CuCl2(aq) + Na2S(aq) ---->CuS(s) + 2NaCl(aq). A precipitate (CuS) is formed.
  • In the second reaction, Pb(NO3)2(aq) + 2KNO3(aq) ----> PbSO4(s) + KNO3(aq), a precipitate PbSO4 is formed
  • In the third reaction, NH4Br(aq) + NaOH(aq) ----->NH3(g)  + NaBr(aq) + H2O(l), a precipitate is not formed here.

Learn more: brainly.com/question/11969651

6 0
3 years ago
A 35 L tank of oxygen is at 315 K with an internal pressure of 190 atmospheres. How many moles of gas does the tank contain?​
VikaD [51]
N = PV = (190 atm)(35 L) = 260 moles of gas RT (0.0821 L.atm/mol.K)(315 K)
5 0
3 years ago
Chemistry help!! I'll give 30 points!!!
malfutka [58]
1. 1/16 x 1 000 000= 62500
2. Each half life is 5750 years long
3. The end of a half life is found by dividing the beginning of the half life by 2.
4. The number 62500 is between the 7th and the 8th half lives (refer to the number of 14C atoms on my table)
5. The 7th half life is 40250 years, and the 8th half life is 46000 years.
6. Therefore, your estimate would be a number roughly in the middle of 40250 and 46000 (for example: 43000)
Hope this helps :)

5 0
3 years ago
Water exhibits a type of magnetism called ___________________ whereby in the presence of a strong magnetic field, the normally n
Lilit [14]

The answer is diamagnetism.  It is a significant mechanical effect that happens in all materials; when it is the only influence to the magnetism, the material is named diamagnetic. Quartz and water are samples of diamagnetic materials. The diamagnetic influence is usually unimportant in materials holding strong lasting magnetic moments.

5 0
3 years ago
How much energy does cameron need to add to raise the temperature of a 0.500-kg sample of silver from 200 k to 205 k? the specif
zzz [600]

energy to raise temperature is 590 J

Given:

mass of silver sample = 0.5 kg

initial temperature = 200 k

final temperature = 205 k

specific heat of silver = 236 j/kgk

To Find:

energy to raise temperature

Solution: The heat energy required to raise the temperature of of a substance through is called its specific heat capacity.

Q = cmΔt

where c= constant of proportionality, called specific heat capacity of the body

Q = mass x specific heat x ∆t

= 0.5 x 236 x ( 205-200 )

= 590 J

So, energy to raise temperature is 590 J

Learn more about Specific heat capacity here:

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5 0
1 year ago
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