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vodomira [7]
3 years ago
15

Sugars such as glucose, fructose, and ribose are examples of _______. A. proteins B. nucleic acids C. carbohydrates D. lipids

Chemistry
2 answers:
algol133 years ago
8 0
Carbonhydrates so it is c

Eddi Din [679]3 years ago
7 0
The correct answer is C, carbohydrates. 
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Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the atom? A
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Answer:

Electron

Explanation:

The answer would be the electron because it is constantly moving so its location cannot be accurately determined

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3 years ago
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If a sample containing 18.1 g of NH3 is reacted with 90.4 g of
USPshnik [31]

Answer:

3.64g

Explanation:

Given parameters:

Mass of NH₃  = 18.1g

Mass of Cu₂O  = 90.4g

Unknown:

Limiting reactant  = ?

Mass of N₂ formed  = ?

Solution:

The reaction equation is given as:

       Cu₂O + 2NH₃ → 6Cu + N₂ + 3H₂O

The limiting reactant is the one in short supply in the reaction. Let us find the number of moles of the given species;

  Number of moles = \frac{mass}{molar mass}  

Molar mass of Cu₂O = 2(63.6) + 16  = 143.2g/mol

Molar mass of NH₃  = 14 + 3(1) = 17g/mol

Number of moles of Cu₂O = \frac{18.1}{143.2}   = 0.13moles

Number of moles of NH₃   = \frac{90.4}{17}   = 5.32moles

  From this reaction;

       1 mole of  Cu₂O combines with 2 mole of NH₃

So   0.13moles of  Cu₂O will combine with 0.13 x 2 mole of NH₃

                                              = 0.26moles of NH₃

Therefore, Cu₂O is the limiting reactant. Ammonia is in excess;

Mass of N₂;

   Mass = number of moles x molar mass

    1 mole of Cu₂O  will produce 1 mole of N₂

    0.13 mole of Cu₂O  will produce 0.13 mole of N₂

    Mass  = 0.13 x (2 x 14) = 3.64g

5 0
3 years ago
If 2.00 g of Zn is allowed to react with 2.00 g of CuSO4, how many grams of
otez555 [7]

Answer:

dk

Explanation:

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State, in terms of the arrangement of atoms, the difference in hardness between diamond and graphite.
sleet_krkn [62]

The difference in hardness between diamond and graphite is that diamond has an ordered arrangement of atoms within its structure that makes it harder and stronger than graphite. This is due to the high pressure and high temperature that it went.

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3 years ago
Briefly explain formality in solution.
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Answer:

Both molarity and formality express concentration as moles of solute per liter of solution. Formality is a substance's total concentration in solution without regard to its specific chemical form. ... The formality of a solution is defined as the number of formula mass of any solute dissolved in 1 litre of solution.

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