Grams (g) is much lighter than kilograms (kg)
When a molecule can occupy the same active site as the substrate, a situation called enzymes can result.
Answer:
a reaction in which one element is substituted for another element in a compound
Explanation:
X is girl, and y is boy, they are formed by fission.
Answer: Reactivity is not a physical property, it is a chemical property.
Explanation:
Physical property is a value of matter that can be observed and measured without any change in composition of the matter. Examples of physical properties are color, combustion,melting point,boiling point,solubility, texture, appearance, polarity, odor,viscosity, density and many more.
Chemical properties are characteristics that are obvious or seen when substances undergo chemical reaction. Examples are reactivity,toxicity, acidity, flammability, and heat combustion.