First one because Common synthetic materials are nylon, acrylic, polyester, carbon fiber, rayon and spandex. Synthetic materials are made from chemicals and are usually based on polymers. They are stronger than natural and regenerated materials.
Many different chemicals burn and produce flames, but different chemicals have different chemical properties, and produce different amounts of energy when they burn. Those which produce more energy, will also produce hotter flames.
Answer:
The correct option is: non-covalent interactions
Explanation:
Enzymes are the macromolecules that are responsible for catalyzing biochemical reactions in the cell and thus they are known as the<u> biological catalysts.</u> They have<u> high specificity and selectivity.</u>
In an enzyme-catalyzed reaction, the substrate molecules bind to the active sites present on the surface of the enzyme, resulting in the formation of a enzyme-substrate complex, which is stabilized by weak non-covalent interactions such as Van der Waals forces, hydrophobic interactions, electrostatic forces and hydrogen bonding.
A_r = 35.5
The average atomic mass of Cl is the <em>weighted average</em> of the atomic masses of its isotopes.
We multiply the atomic mass of each isotope by a number representing its relative importance (i.e., its <em>% abundance</em>).
Thus,
0.7553 × 35 u = 26.4 u
0.2447 × 37 u = <u>9.05 u</u>
TOTAL = 35.5 u
