Answer:
C) polarity
Explanation:
The polar nature of water molecules allows it to dissolve like molecules, such molecules are also polar.
- In water molecules hydrogen bonds provides a special dipole - dipole attraction.
- Here, the hydrogen atom is directly joined to a highly electronegative atom(oxygen, nitrogen or fluorine).
- This leads to a charge separation in which the hydrogen atom has net positive charge and the electronegative one has negative charge.
- This makes the molecule of water polar.
- By this property water easily attracts oppositely charged portions of another substance and then pull them into solution.
This property of water is polarity of water.
Answer: c. 0.15%
Explanation:
The blood alcohol concentration or BAC refers to the percentage of alcohol present in the bloodstream. The value of blood alcohol concentration of 0.15% is very high. It will affect the balance of voluntary muscles, walking and talking will also become difficult. The person will experience a severe increase in the rate of heart, the body temperature will rise, the person will experience irregular breathing and the bladder control will become weak.
Ribosomes, cytoplasm, cell membrane
Answer: E
<span>Neurons are cells
that facilitate communication from one part of the body to another and signals
are send as mean of communication which can be achieved through electrical
potentials. Thus, cell membrane around the neuron usually create ionic potentials
by separating various ions across tis cell membrane. However, the place where
most processes that involved in neuronal preservation and functioning are
triggered is known as neuronal membrane.</span>
