Answer : The most likely happens during this reaction is, Oxidation-reduction
Explanation :
The balanced reaction will be,
![4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)](https://tex.z-dn.net/?f=4Fe%28s%29%2B3O_2%28g%29%5Crightarrow%202Fe_2O_3%28s%29)
In this reaction, neutral iron loses 3 electrons and oxidizes in (+3) state,
and neutral oxygen gains 2 electrons and reduces in (-2) state,![O^{2-}](https://tex.z-dn.net/?f=O%5E%7B2-%7D)
When iron react with oxygen gas to give iron oxide. This process is known as iron rusting. During the reaction, oxidation-reduction process occurs.
Oxidation : It is a type of chemical reaction in which a substance loses its electrons. Or we can say that in oxidation, the oxidation number increases.
Reduction : It is a type of chemical reaction in which a substance gains its electrons. Or we can say that in reduction, the oxidation number decreases.
The grams are in 0.0150 moles of caffeine C8H10N4O2
mass = moles of C8H10N4O2 x molar mass of C8H10N4O2
= 194g/mol x 0.0150mol = 2.91 grams
there is 2.94 grams in 0.01150 of caffeine
Answer:
2) 0.109 mol
Explanation:
The density of butan-1-ol is 0.8098g/mL. And its molar mass is: 74.121g/mol.
First, we need to convert volume of butan-1-ol to mass:
10.0mL * (0.8098g / mL) = 8.098g of butan-1-ol
Now, we need to convert these grams to moles using molar mass:
8.098g * (1mol / 74.121g) = 0.109 moles of butan-1-ol
Right answer is:
<h3>2) 0.109 mol
</h3>
Answer:
The heat energy stored within them changes
Explanation:
Heat energy is a function of the mass of a body, its specific heat capacity, and its temperature.
In this case, the bodies have the same specific heat capacity since they are made from the same material and the same temperature.
To get the quantity of heat stored in a body, we need to multiply all three parameters as shown below
![Q = mC \Delta T](https://tex.z-dn.net/?f=Q%20%3D%20mC%20%5CDelta%20T)
An increase in mass, through an increase in the amount of substance of a material present, will cause a corresponding increase in the heat energy stored within the material
S orbit can hold 2 electrons