Answer:
Because the reaction is endothermic, and because of that, it is necessary to warm up the solution, to achieve more dissolution
Explanation:
The chemical reactions can be exothermic or endothermic. In the first one, the system loses heat for the surroundings, so the temperature of the surroundings is increasing, and the system is decreasing.
In the endothermic reactions, the system is absorbing heat for the surroundings, so its temperature is increasing, and the temperature of the surroundings is decreasing.
Note that the flow heat only occurs when there is a difference in temperature because the system and the surroundings intend to the thermal equilibrium. So, for exothermic reactions, to control them and let them achieve the maximum conversion, is ideal to cool down the solution, so the reaction will lose more heat; and for endothermic reactions, it is ideal to warm up the solution, so the reaction can absorb more heat.
So, the reaction of the dissolve of the antiacid tablet is endothermic, and because of that, it is necessary to warm up the solution, to achieve more dissolution.
There are 3 possible ways of determining pH.
1. A pH meter, 2. Litmus paper/ pH test strips or 3. Titrations.
1. A pH meter works by sending a small electric current through the solution. An electrical current can only be created if there are free-moving particles such as H+ ions from an acid or OH- ions from a base. The pH meter can determine the pH by how high the conductivity is.
2. Litmus Paper or pH test strips are strips that turn a specific colour under a specific pH. This colour can then be compared to a colour chart which will tell you the pH. The downfall of this method is that the red ink will stain the strip and you will be unable to get an accurate reading.
3. A titration is the best method, if done properly, for determining pH.
<span>#1 is air radon, #2 is x-ray, #3 is ground, #4 is cosmic radiation, #5 is TV tube, #6 is weapons test fallout . That's all I got hope I helped!</span>
<u>Answer and Explanation:</u>
Mercury combines with sulfur as follows -
Hg + S = HgS
Hg = 200,59
S = 32,066 Therefore 1.58 g of Hg will react with -
1.58 multiply with 32,066 divide by 200,96 of sulfur.
= 0.25211 g S
This will form 1.58 + 0.25211 g HgS = 1.83211 g HgS
The amount of S remaining = 1.10 - 0.25211 = 0.84789 g
Answer:
C
Explanation:
because it remains the same
