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Lynna [10]
3 years ago
6

Hydrogen bonds between water molecules are responsible for the unique chemical and physical properties of water. True False

Chemistry
1 answer:
N76 [4]3 years ago
3 0

Answer:

True

Explanation:

The physical and chemical properties of a substance depend on the nature of intermolecular forces between its molecules. For instance, water has a high boiling point because of hydrogen bonding between water molecules. Liquid water is denser than ice because of the difference in the nature of hydrogen bonding in liquid water and ice.

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On hot days, you may have noticed that potato chip bags seem to “inflate”, even though they have not been opened. If I have a 25
Taya2010 [7]

The new volume of the bag : 747.43 ml

<h3>Further explanation</h3>

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}

V₁=250 ml

T₁=19+273=292 K

T₂=600+273=873 K

\tt V_2=\dfrac{V_1.T_2}{T_1}\\\\V_2=\dfrac{250\times 873}{292}\\\\V_2=747.43~ml

7 0
3 years ago
6.
levacccp [35]

Answer:

the time required for one half of a sample of a radioisotope to decay

7 0
2 years ago
Add oxidation numbers to the following reaction: 2 H3PO4 (aq) + 2 Cr(s) → 2 CrPO4 (aq) + 3 H2(g). Identify the atom that is oxid
rewona [7]

The atom that is oxidized : Cr

The oxidizing agent : H₃PO₄

<h3>Further explanation</h3>

Reaction

2 H₃PO₄ (aq) + 2Cr(s) → 2 CrPO₄ (aq) + 3H₂(g)

Atoms undergoing a reduction reaction (decrease in oxidation number) and an oxidation reaction (increase in oxidation number)

  • Reduction (+1 to 0)

H⁺(in H₃PO₄) =+1

H₂=0

  • Oxidation (0 to +3)

Cr = 0

Cr³⁺(in CrPO₄ )

the oxidizing agent.⇒which undergoes a reduction reaction and oxidizes another compound/element : H₃PO₄

3 0
3 years ago
What adaptation do lungfish have te help them walk and live on land?
Viktor [21]

Answer: biological adaptation

Explanation:

lungfish's lung is a biological adaptation. A biological adaptation is a physical change in an organism that develops over time. Like all fish, lungfish have organs known as gills to extract oxygen from water. The biological adaptation of the lung allows lungfish to also extract oxygen from the air.

I hope this helps :).

5 0
3 years ago
Read 2 more answers
How are organelles connected to cell theory?
dsp73

Answer: bound in a double layer of phospholipids to insulate their little compartments within the larger cells.

Explanation: An organelle (think of it as a cell’s internal organ) is a membrane bound structure found within a cell. Just like cells have membranes to hold everything in, these mini organs are also bound in a double layer of phospholipids to insulate their little compartments within the larger cells.

4 0
2 years ago
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