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Novay_Z [31]
3 years ago
14

DNA bases are attached to _____.

Chemistry
2 answers:
Gennadij [26K]3 years ago
7 0

Answer:

Both sugar and phosphate molecules

Explanation:

melomori [17]3 years ago
5 0

Answer:

both sugar and phosphate molecules

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A balloon is filled with 0.250 mole of air at 35°C. If the volume of the balloon is 6.23 liters, what is the absolute pressure
lord [1]

Answer is:  the absolute pressure of the air in the balloon is 1.015 atm (102.84 kPa).

n = 0.250 mol; amount of substance.

V = 6.23 L; volume of the balloon.

T = 35°C = 308.15 K; temperature.

R = 0.08206 L·atm/mol·K, universal gas constant.

Ideal gas law: p·V = n·R·T.

p = n·R·T / V.

p = 0.250 mol · 0.08206 L·atm/mol·K · 308.15 K / 6.23 L.

p = 1.015 atm; presure of the air.

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3 years ago
If 0.450 moles of iron III oxide (Fe2O3) are allowed to react with an excess of aluminum (Al) and 43.6 grams of iron (Fe) is pro
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21.4 g Al * (1 mol / 26.98 g ) * (2 mol Fe / 2 mol Al) = 0.793 mol Fe 
91.3 g Fe2O3 * (1 mol / 159.69 g) * (2 mol Fe / 1 mol Fe2O3) = 1.14 mol Fe 
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What is the mass of air in room
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Complete the chemical change. Na → Na+ <br><br> a.)2e-<br> b.)proton<br> c.)1e-
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C) 1e- is the answer because you need that in order to balance the charges
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Which of the following is an example of a physical property?*
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