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Kamila [148]
4 years ago
10

Which is a waste product of aerobic respiration? A. water B. energy C. oxygen D. glucose

Chemistry
1 answer:
Svetradugi [14.3K]4 years ago
7 0

Answer: A

Explanation:

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For each of the following compounds, state whether it is ionic or covalent, and if it is ionic, write the symbols for the ions i
kupik [55]

Answer :

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

All the polyatomic ions always form an ionic compound.

Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.

For the given options:

Option A:  KClO_4

This compound is formed by the combination of potassium, K^+ which is a metal and ClO_4^- ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option B:  Mg(C_2H_3O_2)_2

This compound is formed by the combination of magnesium, Mg^{2+} which is a metal and C_2H_3O_2^{-} ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option C:  H_2S

Hydrogen and sulfur, both are non-metals and they will form a covalent compound.

Option D:  Ag_2S

This compound is formed by the combination of silver, Ag^{+} which is a metal and sulfur, S^{2-} which is a non-metal. Thus, it will form an ionic compound.

Option E:  N_2Cl_4

Nitrogen and chlorine, both are non-metals and they will form a covalent compound.

Option F:  Co(NO_3)_2

This compound is formed by the combination of cobalt, Co^{2+} which is a metal and NO_3^{-} ion which is a polyatomic ion. Thus, it will form an ionic compound.

6 0
3 years ago
After Rutherford bombarded gold foil with alpha particles, he concluded that the volume of an atom is mostly empty space. Which
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What does conserving mass mean in a chemical equation?
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3 years ago
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If all the light waves are absorbed by an object then the object will apear what color
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When light hits a surface, some of it is absorbed and some of it is reflected. The light that is reflected is the color of the object in that light. For example, a blue object absorbs all the colors of the spectrum except blue, it reflects blue light. hope this can help.

5 0
3 years ago
Read 2 more answers
The neutralization of H 3 PO 4 with KOH is exothermic. H 3 PO 4 ( aq ) + 3 KOH ( aq ) ⟶ 3 H 2 O ( l ) + K 3 PO 4 ( aq ) + 173.2
Ratling [72]

Explanation:

It is known that,

      No. of moles = Molarity × Volume

So, we will calculate the moles of H_{3}PO_{4} as follows.

         No. of moles = 0.227 \times 0.055 L

                                = 0.0125 mol

Now, the moles of KOH are as follows.

       No. of moles = 0.680 \times 0.055 L

                                = 0.0374 mol

And, 3 \times \text{moles of} H_{3}PO_{4} = 3 \times 0.0125

                             = 0.0375 mol

Now, the balanced reaction equation is as follows.

     H_{3}PO_{4}(aq) + 3KOH(aq) \rightarrow 3H_{2}O(l) + K_{3}PO_{4}(aq) + 173.2 kJ

This means 1 mole of H_{3}PO_{4} produces 173.2 kJ of heat. And, the amount of heat produced by 0.0125 moles of H_{3}PO_{4} is as follows.

         M = \frac{0.0125 mol \times 173.2 kJ}{1}

             = 2.165 kJ

Total volume of the solution = (55.0 + 55.0) ml

                                               = 110 ml

Density of the solution = 1.13 g/ml

Mass of the solution = Volume × Density

                                  = 110 ml \times 1.13 g/ml

                                  = 124.3 g

Specific heat = 3.78 J/g^{o}C

Now, we will calculate the final temperature as follows.

              q = mC \times \Delta T

          2165 J = 124.3 \times 3.78 \times (T - 22.62)^{o}C

        2165 - 469.854 = T - 22.62^{o}C

           17.417 = T - 22.62^{o}C

               T = 40.04^{o}C

Thus, we can conclude that final temperature of the solution is 40.04^{o}C.

3 0
3 years ago
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