Answer:
This means that the metal is more properly viewed as an array of positive ions surrounded by a “sea of mobile valence electrons.” Electrons which are capable of moving freely throughout the empty orbitals of the metallic crystal are called delocalized electrons (Figure below).
Answer:
that is my answer hope it helps you out
Explanation:
i got 1.40 for my answer
Answer:
carbon
Explanation:
The properties of carbon forms the basis for all life. Explanation: The atoms of carbon are found in the molecules of all living species.
The enthalpy change for the formation of hydrogen peroxide from water and oxygen is +98.2 kJ·mol⁻¹.
The negative sign tells you that the reaction <em>releases energy</em>.
To make the reaction go in the reverse direction, you must put the same amount of energy back into the system.
Thus, you simply <em>reverse the sign</em> of the enthalpy change for the forward direction.
Chemical equations give information in two major areas. First, they tell us what substances are reacting (those being used up) and what substances are products (those being made). Second, the coefficients of a balanced equation tell us in what ratio the substances react or are produced.
