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Misha Larkins [42]
2 years ago
13

What will happen if you place a cube of ice on the kitchen counter?​

Chemistry
2 answers:
Jet001 [13]2 years ago
7 0
Will melt over a fairly short period of time
Likurg_2 [28]2 years ago
3 0

Answer:

I'll turn into the liquid water because the air temperature is warmer than the freezers.

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What is one group of people or animals that are impacted by ocean acidification?
ki77a [65]

Answer:

Impacts on Ocean Life

Coral Reefs.

Oysters, Mussels, Urchins and Starfish.

Zooplankton.

Plants and Algae.

Fish.

Explanation:

6 0
3 years ago
Read 2 more answers
Consider a 100-gram sample of radioactive cobalt-60.
svetlana [45]

It will take 5.2 years to decay.

The half life of cobalt-60 is 5.2 years. The half life is the time taken for the mass of the substance to decrease by a half.

here, the amount of remaining substance is 50%,

so, (\frac{1}{2} )^{n} = 0.5

n. log (0.5) = log (0.5)

n = 1

So it would take 1 half lives to decay this much, which is 1 x 5.2 which is 5.2 years.

what do you mean by radioactive decay ?

The process through which an unstable atomic nucleus loses energy via radiation is known as radioactive decay, also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration. A material that has unstable nuclei is considered as radioactive.

Learn more about decay here:-

brainly.com/question/13853996

#SPJ1

7 0
1 year ago
Which of the following is the best example of a closed system?
Leona [35]
<span>c. A jar of pond water with a lid on it (: hope this helps!</span>
3 0
3 years ago
Read 2 more answers
닭이 먼저냐 달걀이 먼저냐. 설명.​
k0ka [10]

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)

6 0
2 years ago
Read 2 more answers
Water (10 kg/s) at 1 bar pressure and 50 C is pumped isothermally to 10 bar. What is the pump work? (Use the steam tables.) O -7
11Alexandr11 [23.1K]

Explanation:

For an isothermal process equation will be as follows.

                W = nRT ln\frac{P_{1}}{P_{2}}

It is given that mass is 10 kg/s or 10,000 g/s (as 1 kg = 1000 g). So, calculate number of moles of water as follows.

                    No. of moles = \frac{mass}{\text{molar mass}}

                                           = \frac{10000 g/s}{18 g/mol}

                                           = 555.55 mol/s

                                           = 556 mol/s (approx)

As T = 50^{o}C or (50 + 273.15) K = 323.15 K. Hence, putting the given values into the above formula as follows.

                  W = nRT ln[/tex]\frac{P_{1}}{P_{2}}[/tex]

                      = 556 mol/s \times 8.314 J/ K mol K \times 323.15 K \times ln\frac{1}{10}    

                     = 556 mol/s \times 8.314 J/ K mol K \times 323.15 K \times -2.303    

                     = -3440193.809 J/s

Negative sign shows work is done by the pump. Since, 1 J = 0.001 kJ. Therefore, converting the calculated value into kJ as follows.

                     3440193.809 J/s \times \frac{0.001 kJ}{1 J}

                          = 3440.193 kJ/s

                          = 3451 kJ/s (approx)

Thus, we can conclude that the pump work is 3451 kJ/s.

6 0
3 years ago
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