b. NO
c.HI
d.HCI
Answer:
HCL
Explanation:
Reference Table S lists the electronegativity of each element. The greater the difference in electronegativity, the more polar the bond. The electronegativity of H is 2.2 and the electronegativity of Cl is 3.2; the difference is the greatest of the choices listed.
from castle learning
Answer:
d) Hydrogen chloride
Explanation:
Hydrogen chloride (HCl) is not a mixture. It is a chemical compound composed of two elements, hydrogen (H) and chlorine (Cl), combined in a fixed ratio. In contrast, the other options (antibiotic, evaporated milk, brewed coffee) all involve mixtures:
Antibiotics are typically mixtures of various chemical compounds used for medicinal purposes.
Evaporated milk is a mixture of milk and water with the water removed.
Brewed coffee is a mixture of water and coffee grounds, often with other components like sugar or cream added.
Hydrogen chloride, on the other hand, is a pure compound with a defined chemical formula (HCl) and consistent composition.
b flour
c baking soda
Answer:
The answer is C: Baking Soda
b. triple point.
c. lambda point.
d. freezing point.
Answer: Option (4) is the correct answer.
Explanation:
Activation energy is the minimum amount of energy required by reactant molecules to undergo a chemical reaction.
Whereas a catalyst is defined as the substance that helps in increasing the rate of reaction by decreasing the activation energy without itself getting consumed in the reaction.
When a catalyst decreases the activation energy then molecules with lesser energy become able to participate in the reaction and thus, products are obtained at a faster rate. Hence, a catalyst increases the rate of a reaction.
Thus, we can conclude that a catalyst works by decreasing the activation energy required for a reaction.