Answer:
14 Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.
15 The halogen group of elements is the most reactive of the nonmetals. It is also the most reactive group of all chemical elements. Fluorine is the most reactive element in this group. Halogens are highly reactive because they are all electronegative.
16 Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
17 Group 1: Alkali Metals
Group 1 elements are called alkali metals because of their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water.
Answer:
2) The phospholipid head groups would likely have equal numbers of positively and negatively charged groups that would pack well and not be bulky.
Explanation:
Benzene contains aromatic groups making it non-polar while the phopholipid head contains the negatively charged phosphate group making it polar. These molecules would repel each other forcing the phopholipid head to be in the inner membrane forming. The hydrophobic non-polar phospholipid tail would form hydrophobic bonds with benzene. The phospholipid head would likely have equal numbers of positively and negatively charged groups that would allow them to form ion-ion interactions helping them pack well and not be bulky. If the heads were still negatively charged they would likely repel each other and be disordered.
Answer:
mitochondria because it provides the cell with energy
