Answer:
OH−(aq), and H+(aq)
Explanation:
Redox reactions may occur in acidic or basic environments. Usually, if a reaction occurs in an acidic environment, hydrogen ions are shown as being part of the reaction system. For instance, in the reduction of the permanganate ion;
MnO4^-(aq) + 8H^+(aq) +5e-------> Mn^2+(aq) + 4H2O(l)
The appearance of hydrogen ion in the reaction equation implies that the process takes place under acidic reaction conditions.
For reactions that take place under basic conditions, the hydroxide ion is part of the reaction equation.
Hence hydrogen ion and hydroxide ion are included in redox reaction half equations depending on the conditions of the reaction whether acidic or basic.
Titration is a method for preparing salt where all reactants are soluble
Mass of Oxygen : 18.8 g
<h3>Further explanation</h3>
Reaction(balanced) :
4Fe + 3O₂ → 2Fe₂O₃
mass Fe = 43.7 g
mol Fe(MW= 55,845 g/mol) :
mol O₂ : mol Fe = 3 : 4, so mol O₂ :
Mass O₂(MW=32 g/mol) :
Or simply you can Conservation of mass, where the masses before and after the reaction are the same
<em>mass reactants=mass products</em>
mass iron+mass oxygen=mass iron (III) oxide
43.7 g + mass oxygen=62.5 g
mass oxygen = 62.5 - 43.7 = 18.8 g
Answer:
C.) Middle
Explanation:
A.) is incorrect because elements on the bottom of the periodic table can be metals, nonmetals, or metalloids. However, the majority of these elements would be metals.
B.) is incorrect because elements on the right side (aka. the p-block) of the periodic table are mostly nonmetals. This excluding the stair case elements which are metalloids and elements to the left of the stair case which are metals.
C.) is correct because elements located in the middle of the periodic table (aka. the d-block) are always metals. The elements in this section are usually nicknamed the "transition metals". It should be noted that elements on the left side (aka. the s-block) of the periodic table are also metals (excluding hydrogen).
Answer:
Floods, hurricanes, and tornadoes are all aspects of weather and not climate because climate is more related to temperature. The definition of climate is "the weather conditions prevailing in an area in general or over a long period." Floods, hurricanes, and tornadoes are not aspects of climate, they are aspects of weather.
Explanation:
