3 years ago

Why does a cell make a copy of its DNA before it dvides?

Chemistry

1 answer:

Natasha_Volkova [10]3 years ago

6 0

<span>so there is a set of DNA for the daughter cell after mitosis has occurred</span>

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tangare [24]

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4 years ago

A person tries to heat up her bath water by adding 5.0 L of water at 80°C to 60 L of water at 30°C. What is the final temperatur

Ratling [72]

Answer: $T_f=33.85\°C$

Explanation:

Hello,

In this case, we can write the following relationship, explaining that the lost by the hot water is gained by the cold water:

$Q_{hot,W}=-Q_{cold,W}$

Which in terms of mass, specific heat and temperatures, we have:

$m_{hot,W}Cp_{W}(T_f-T_{hot,W})=-m_{cold,W}Cp_{W}(T_f-T_{cold,W})$

Whereas the specific heat of water is cancelled out to obtain the following temperature, considering that the density of water is 1 kg/L:

$T_f=\frac{m_{hot,W}T_{hot,W}+m_{cold,W}T_{cold,W}}{m_{hot,W}+m_{cold,W}}\\\\T_f=\frac{5.0kg*80\°C+60kg*30\°C}{5.0kg+60kg} \\\\T_f=33.85\°C$

Regards.

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3 years ago

A glass of table wine contains:

Aleks04 [339]

12% ABV would be the best answer

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3 years ago

What is the name of this molecule? <br><br> CH3 (single bond) C (triple bond) C (single bond) CH3

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:)

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3 years ago

A) what is the light source for a plant growing in the shade?

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