2 years ago

What do proteins and nucleus acids have in common

Chemistry

1 answer:

Harrizon [31]2 years ago

5 0

Answer:

They are both polymers that are found in living cells.

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How many moles of koh are contained in 250 ml of a 2.0 m solution of koh

kotykmax [81]

.5 mols
Assuming that your 2.0 m is an M for molarity
I used the formula M=number of mold/L
Converted 250mL to .250L by dividing by 1000

4 0

2 years ago

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

yuradex [85]

Answer:

$\boxed{\text{2408 min}}$

Explanation:

The integrated rate law for radioactive decay is

$\ln\dfrac{N_{0}}{N_{t}} = kt$

1. Calculate the decay constant

$\begin{array}{rcl}\ln \dfrac{100}{90} & = & k \times 366\\\\1.054 & = & 366k\\\\k & = & \dfrac{1.054 }{366}\\\\k & = & 2.879 \times 10^{-4} \text{ min}^{-1}\\\end{array}\\\\$

2. Calculate the half-life

$t_{\frac{1}{2}} = \dfrac{\ln2}{k}\\\\t_{\frac{1}{2}} = \dfrac{\ln2}{2.879 \times 10^{-4} \text{ min}^{-1}} = \text{2408 min}\\\\\text{The half-life for decay is } \boxed{\textbf{2408 min}}$

8 0

3 years ago

Please help which one is it

creativ13 [48]

Answer:

d:more dense and falls

Explanation:

warm air Rises around cold air bc of its lower density. and when you have a lower density fluid or sum the lower density fluid rises and the higher density falls

6 0

2 years ago

Read 2 more answers

Someone pls help me I will mark you as brain

Reptile [31]

3rd one I think it is.

5 0

2 years ago

3. The dry air in the Alps helped to prevent damage to the cells in the Iceman's body.

Sever21 [200]

Answer:

False

Explanation:

because they do not prevent damage they make damage

3 0

2 years ago