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DanielleElmas [232]
3 years ago
14

Which symbol is generally used to represent a sugar in simple models of nucleotides?

Chemistry
1 answer:
Bumek [7]3 years ago
3 0
The sugar that occurs in nucleotides tends to be a 5 carbon sugar called ribose or deoxyribose and tends to be represented by a pentagon of 5 carbons joined to oxygen and OH to form part of the helix forming nucleic acids. The nucleotides are what constitutes the DNA and RNA which control genetic characteristics.
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A pressure of 10Nm -2 is equal to ?​
HACTEHA [7]

Answer:

a pressure of 10 Nm -2 is equal to ?​

1 atmosphere

Explanation:

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Can you identify a sample from a living organism by examining it under a microscope? Yes or No
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6 0
3 years ago
Determine the amount of energy (heat) in joules required to raise the temperature of 5 kg of iron from 50°C to 200°C.
larisa [96]

333,000 Joules is the amount of energy (heat) in joules required to raise the temperature of 5 kg of iron from 50°C to 200°C.

Explanation:

Data given:

mass of iron 5 Kg or 5000

initial temperature = 50 degree centigrade

final temperature = 200 degrees centigrade

change in temperature (Δ T= 200 -50 degrees centigrade)

                                         = 150 °C

cp  (specific heat capacity of iron) = 0.444j/gram C

q (heat supplied) = ?

applying the formula,

q=mcΔT

putting the values in the equation:

q = 5000 X 0.444 X150

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The heat required 333,000 Joules of energy is required.

4 0
4 years ago
The ka value for acetic acid, ch3cooh(aq), is 1.8× 10–5. calculate the ph of a 1.60 m acetic acid solution.
leonid [27]

<span>To determine the pH of the solution given, we make use of the acid equilibrium constant (Ka) given. It is the ratio of the equilibrium concentrations of the dissociated ions and the acid. The dissociation reaction of the CH3COOH acid would be as follows:

</span>CH3COOH = CH3COO- + H+<span>

The acid equilibrum constant would be expressed as follows:

Ka = [H+][</span>CH3COO-] / [CH3COOH] = 1.8× 10^–5

<span>
To determine the equilibrium concentrations we use the ICE table,
         CH3COOH             H+             </span>CH3COO<span>-
I            1.60                    0                     0
C             -x                    +x                   +x
----------------------------------------------------------------
E         1.60-x                   x                     x 

</span>1.8× 10^–5 =  [H+][CH3COO-] / [CH3COOH] <span>
1.8 x 10^-5 = [x][x] / [0.160-x] </span>

Solving for x,

x = 1.69x10^-3 = [H+] = [F-]

pH = -log [H+] = -log [1.69x10^-3] = 2.8

8 0
3 years ago
Someone help with this question
Tasya [4]

Answer:

the answer is D the dominant over powers the resecive traits

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