One Nitrogen and three iodine's react to form two nitrogen triiodides.
Answer:
7
Explanation:
just add p has 1 o has 4 and h has 2
Answer:
77.173g
Explanation:
we have been given the number of moles contained in CH thus we can find the molar mass of CH and then calculate for the mass
Answer:
d. at 25.0 and 1 atm
Explanation:
The standard heat of formation of a substance is the amount of heat absorbed or evolved when 1 mole of the substance is formed from from its constituent elements. It is also known as standard enthalpy of formation.
All elements in their natural states, have a standard heat of formation of zero because there is no temperature change involved in their formation. Example includes oxygen gas, graphite (solid carbon).
a. ΔH° of at standard pressure of 1 atm is zero, but not at 2 atm
b. ΔH° of Fe at 25.0 is zero, but not at 1200
c. ΔH° of is not zero because it's a compound
d. ΔH° of is zero at standard conditions
NaCl - also known as sodium chloride or table salt; an ionic bond; it’s a chemical compound, so both
SO2 - also known as sulfur dioxide; a covalent bond; nonmetal
CaO - also known as calcium oxide; an ionic bond; metal
HF - also known as hydrogen fluoride; polar covalent; metal
NO2 - also known as nitrogen dioxide; covalent; nonmetal
H2O - also known as water; covalent; nonmetal