Answer:
ΔH = 
Explanation:
In a calorimeter, when there is a complete combustion within the calorimeter, the heat given off in the combustion is used to raise the thermal energy of the water and the calorimeter.
The heat transfer is represented by
=
where
= the internal heat gained by the whole calorimeter mass system, which is the water, as well as the calorimeter itself.
= the heat of combustion
Also, we know that the total heat change of the any system is
ΔH = ΔQ + ΔW
where
ΔH = the total heat absorbed by the system
ΔQ = the internal heat absorbed by the system which in this case is
ΔW = work done on the system due to a change in volume. Since the volume of the calorimeter system does not change, then ΔW = 0
substituting into the heat change equation
ΔH = + 0
==> ΔH =
Vanadium
V 1s²2s²2p⁶3s²3p⁶4s²3d³
I think D, not sure though!
Water can be understood as both yin and yang. The number of ways Yin and Yang can be explained is in numerous ways.
Yin and Yang explain how to exist in harmony and in balance with nature. Yin and Yang are not distinct entities, but rather two extremes of a spectrum. Everything Yin includes a trace of Yang. Also, everything Yang contains a trace of Yin. They are always in connection with one another.
The yin is the physical aspect of nature and the yang is the forces surrounding these physical aspects.
Some of the ways in which Yin and Yang can be explained are as follows:
- Yin and Yang can be explained from the water, whereby the water is the Yin while the wind carrying the water waves is known as the Yang.
- In the body, the Yin shows the anatomy and structure of the body while the Yang explains the psychological functioning of the body.
Disruption in either Yin or Yang can cause an imbalance in nature.
Therefore, we can conclude that the number of ways in which we can explain the Yin and the Yang is numerous.
Learn more about nature here:
brainly.com/question/23250589?referrer=searchResults
A chemical property of isopropanol : D. Isopropanol is flammable.
<h3>Further explanation
</h3>
There are changes that occur in the mater: physical changes and chemical changes
Classification uses the principle of the initial and final state of the substance.
Physical changes do not form new substances, so the properties of the particles remain the same.(size,volume,shape)
Example : boiling and freezing, just change its phase form from liquid to gas or from liquid to solid
Chemical changes/reaction form new substances(products) that are different from the initial substances(reactants)
Example : toxic, corroded
So :
-
the physical properties of isopropanol :
<em>mass, density, evaporation</em>
- the chemical properties of isopropanol :
<em>highly flammable</em>
