7
Decreases
You should always add (small parts of) the concentrated compound (acid, hydroxide) to (the larger amount of) water, because you can stirr and mix and cool down better (heat of hydration can be absorbed much better by the water and surroundings)
is soluble in water and will fizz when hydrochloric acid is added
Acid is a substance that, when added to water, dissociates (dissolves) to release H+ ions into the water. The higher percent of the acid that dissociates, the stronger the acid.
When an acid based food is added to Jello mix and water, then allowed to cool, the Jello will not set. Acid based foods should be added to Jello after it has fully set.
They would both contain the same neutral pH of pure water = pH of 7.0; neither acidic nor basic.
The pH drops. The stronger the acid the lower the pH.
Determine the concentration desired and then pour the needed amount of water into beaker. Add the the acid volume to this beaker full of water.
Exothermic, because energy is released.
Decreases
You should always add (small parts of) the concentrated compound (acid, hydroxide) to (the larger amount of) water, because you can stirr and mix and cool down better (heat of hydration can be absorbed much better by the water and surroundings)
is soluble in water and will fizz when hydrochloric acid is added
it is gay
sulphuric acid
1
Mixing of acid with water is highly exothermic. Hence acid is added to water.Also, adding acid to water, if the mixture accidentally splashes you will be less likely to be injured by the dilute acid mix. Adding water to acid, if the mixture accidentally splashed you will be more likely to be injured by the still concentrated acid mix.
is Ca(OH)2 is soluble in water and will hissing when hydrochloric acid is added