Answer: True
Explanation: There are many different types of reactions that can occur during a chemical reaction, a substance dissolving is one of them! often you will notice the following: fizzling, bubbles, color change, odor being produced, smoke. etc.
Answer:
0.08moles
Explanation:
Given parameters:
Volume of gas = 0.5L
Pressure of gas = 400kPa
Temperature of gas = 300K
Unknown:
Number of moles of N₂ = ?
Solution:
Applying the ideal gas law which is a combination of the three gas law: Boyle's law, Charles's law and Avogadro's law will solve this problem.
The ideal gas law is stated as;
PV = nRT
P is the pressure of the gas
V is the volume of the gas
n is the number of moles
R is the gas constant
T is the temperature of the gas
We need to convert kPa of the pressure to atm which is a more comfortable unit to work with.
400kPa will be 
= 3.95atm
Input the variables in the equation;
3.95 x 0.5 = n x 0.082 x 300
n = 0.08moles
<span>Omitting this substance will not affect the appearance of hand lotion because it is a white or off white color. Since it is an alcohol compound if it is left out of the formula it will keep your hands from drying out as fast. </span>Triethanolamine is considered as an amine alcohol. The compound itself does not affect much the appearance of the hand lotion prepared as it is colorless, But, the alcohol If avoided would result in a hand lotion which would not get dried out easily
Answer:
Fractional distillation is a method for separating a liquid from a mixture of two or more liquids. For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This method works because the liquids in the mixture have different boiling points. When the mixture is heated, one liquid evaporates before the other.
