Explanation

Enzymes catalyze reactions by lowering the activation energy required for the conversion of substrates into products.

Explanation

The molecules of a gas are in constant, random, and chaotic motion.

They move in all possible directions in three dimensions. 

Gas molecules:

• Are widely separated
• Have low attractive forces
• Are free to move in any direction
• Collide with one another

Explanation

• The word "science" is derived from the Latin word "scientia," which means "knowledge" or "knowing."
• This Latin word is itself derived from the verb "scire," which means "to know."

Explanation

acetone reacts with iodine to form iodoform in the presence of NaOH.

Explanation

Explanation

Galton defined eugenics as

“the study of agencies under social control that may improve or impair the racial qualities of future generations either physically or mentally.”

Explanation

Explanation

The color of water varies with the ambient conditions in which that water is present.

Explanation

A Ship/boat floats based on the Archimedes Principle.

Archimedes principle:

the principle of Archimedes states "When a body is immersed in a liquid, an upward thrust, equal to the weight of the liquid displaced, acts on it."

Thus, when a solid is fully immersed in a liquid, it loses weight which is equal to the weight of the liquid it displaces.

Explanation