The Lithium-ion Battery Problem
Overheating. They overheat and explode if charged too fast.
Short life time. They die after less than 1,000 charge/discharge cycles.
Flammable. They use chemicals that are flammable. ...
Toxic. ...
Underperform in extreme temperatures. ...
Expensive casing. ...
Expensive to transport.
Answer:
pineal body is a vastigious structure which signifies same origin of chimpanzee and modern man
Explanation:
Answer:
Some bacteria like <em><u>rhizobium</u></em> and <u><em>blue green algae</em></u> are able to fix nitrogen gas from the atmosphere to enrich the soil with nitrogen compounds and increase its fertility. The nitrogen-fixing bacteria and blue green algae are called <u><em>biological nitrogen fixers.</em></u>
Answer is: (3) ionic and molecular.
Ionic compounds are made of ions held together with ionic bonds.
Ionic bond forms when a cation transfers its extra electron to an anion who needs it.
For example compound magnesium chloride (MgCl₂) has ionic bond (the electrostatic attraction between oppositely charged ions).
Magnesium (metal) transfers two electrons (became positive cation) to chlorine (became negative anion).
Molecular compounds are made up of molecules whose atoms are connected with covalent bonds.
Covalent bond is bond between nonmetals.
For example, molecule carbon monoxide CO has covalent bond.
Carbon (C) and oxygen (O) are nonmetals.
Carbon atom and oxygen atom are connected by a triple bond (six shared electrons in three bonding molecular orbitals) that is formed of two covalent bonds and one dative covalent bond.
80 protons,121 Neutrons, and 80 electrons the element is Mercury
