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When you add water to a glass of iced tea and color lightens up is it a physical or chemical change?
chemical change!! YAY!!
What happen if the potassium permanganate solution drop to the water and add of concentrated sulfuric acid?
It will change colour and become purple
How do you preserve tomato without chemical?
Addition of salt or sugar to dehydrate it, or natural dehydration methods. Could also add an acid to change the pH or change the temperature to prevent bacteria growth.
How physical properties different from chemical properties?
they are different because a chemical change is a change in which you apply heat to a object to change it in form physical change is when you change a form it size or shape but do not apply heat.So you will know the differnce because when you add heat to any object its a chemical change but expccpt boiling water
How do acid reacts with water?
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 neutralizing a chemical or physical change?
Neutralization is a chemical reaction, also called a water forming reaction, in which an acid and a base. so therefore it is a chemical change.
How can you change water chemically?
add a chemical.
Do you add water to acid or add acid to water?
you add acid to water
How do you change the pH of a water solution?
Add an acid or a base to it.
What happens when you add an alkali to an alkali?
A chemical reaction. Acid + alkali = salt + water eg H2SO4 + 2NaOH = Na2SO4 + 2H2O Sulfuric acid + Sodium Hydroxide = Sodium Sulfate + water Whan as acid meets an alkali they create a chemical reaction. If there is an acid and you add a weak alkali you should bring it down to neutral.
How can you change the concentration of acid?
By diluting it with water or neutralising it with a base or alkaline
When you add water to a glass of iced tea and color lightens up is it a physical or chemical change?
chemical change!! YAY!!
Why does it not matter how much water you add when dissolving the acid (KHP) or when carrying out the titration?
Because water is not involved in the chemical reaction.
If one wants to top up a tank of muriatic acid should one first add the water or concentrated acid?
When mixing acid and water, always add the acid to the water, and add it slowly. Never add the water to the acid.
Large water add to small acid?
Never add water to an acid always add small amount of acid slowly in large amount of water.
Can Neutralize a base physical or chemical?
Add a strong base to strong acid and you will neutralize it. Similarly, add a strong acid to a strong base and it will be neutralized. For example:- HCl + NaOH ----> NaCl + H2O You add a strong base to a strong acid and get a neutral salt and water.
What is the change when you add zinc to about 5 ml of hydrochloric acid?
The chemical reaction is:Zn + 2 HCl = ZnCl2 + H2
