B. Suspensions is the answer
I believe it is density but i'm not for certain try looking it up somewhere else
All chemical reactions follow the law of conservation of mass. This means that the number of atoms of a specie before the reaction must equal to the number of atoms of that specie after that reaction. The only change that occurs in chemical reactions is the breaking and formation of chemical bonds, due to which energy may be released or absorbed.
Answer:
1. density = 0.89 g/cm3
2. Yes is possible to identify the liquid
3. ethanolamine
Explanation:
<u>Data:</u>
mass = 682 g
volume = 0.767 L = 767 mL or cm3
1.
To calculate the density of the liquid it is necessary to know that the density formula is:
The data obtained is replaced in the formula:
2.
With the given data it is possible to identify the liquid, this because the density value is a basic property of each liquid.
3.
It is possible to determine what liquid it is, since when comparing the value obtained with those reported in the collection of Material Safety Data Sheets (MSOS), the value that agrees is that of ethanolamine.
Answer:
-776 KJ/mol
Explanation:
We must look towards the balanced reaction equation in order to obtain the number of electrons transferred in the redox reaction.
3Cu(s) + 2MnO4^-(aq) + 8H^+(aq)------>3Cu2+(aq) + 2MnO2(s) + 4H2O(l)
We can easily see that copper lost six electrons while Manganese gained six electrons hence n=6
ΔG =-nFEcell
Where;
n= 6
F = 96500 C
Ecell=+1.34
ΔG = -(6 * 96500 * 1.34)
ΔG = -776 KJ/mol
