It's
Zn=Zinc
and O=Oxide
so it will be Zinc Oxide
Answer:
Excretion is the process of removing wastes from the body. Organs of the excretory system include the kidneys, large intestine, skin, and lungs.
The excretory system removes metabolic wastes from the body. The major organs of excretion are the kidneys, a pair of bean-shaped organs located below the liver. The kidneys filter blood and regulate water balance in the body
The distinction between a chemical change and a physical change is best illustrated by the sentence. A physical change will alter the state of matter, but a chemical change results in the formation of a new substance. Therefore, choice A is right.
<u>How does chemistry change?</u>
Chemical reactions between various substances have changed, leading to the creation of new chemicals. The chemical properties of the substance are unaffected by physical changes. Chemical compounds wouldn't alter as a result of the physical change. The matter's physical state may change as a result of the physical change.
A physical change causes the formation of a new substance, whereas a chemical change alters the state of matter.
A physical change occurs naturally, but a chemical change is exploited by scientists to make new compounds. A physical change will result in a different state of matter, but a chemical change produces a new substance.
So the phrase that contrasts a chemical change with a physical change is the most accurate. A physical change will alter the state of matter, but a chemical change results in the formation of a new substance.
Learn more about chemical change here:
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Answer:
Dipole-Dipole force
Explanation:
Dipole - Dipole force -
These are the force of attraction , that occurs between two dipole , i.e. ,a species with two poles , hence , the attraction between the delta positive charge of first species with the delta negative charge of the second species , arises to a dipole - dipole force of attraction.
Hence, from the question,
SO₂ , is a polar compound , where O is more electronegative in comparison to S , thus , O attains a delta negative charge and S attains a delta positive charge and therefore , generates a dipole , and interacts with the dipole of the second molecule of SO₂ , arising a dipole - dipole force of attraction .