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What color is phenol red dropped into distilled water?
red
Is fireworks an example of exothermic change?
It's a exothermic reaction because heat and light is being released.
What eles can you use for phenol red?
cabbage juice...
What color is phenol red at neutral pH?
it becomes an orange-red color
What is the difference of the endothermic and exothermic change?
An endothermic change requires heat, and an exothermic change releases heat.
Does phenol red mixed with calcium chloride and baking soda turn out to be a exothermic or endothermic?
it results in a exothermic reaction
Does phenol red change baking soda to red?
Phenol red is a pH indicator. The baking soda is not changing color, but the phenol red is.
Why phenols are soluble in sodium hydroxide?
phenol are soluble in naoh because the reaction between phenol and naoh is exothermic and equilibrium lies to right that makes phenol stable.
Baking Soda mixed with calcium chloride and phenol red solution chemicla or physical change?
It is a chemical change because it produces heat which is evidence that a chemical change has occured.
Is phenol red is a strong base and acids?
Phenol red is a weak acid.
What state of matter is phenol red solution?
A solution of phenol red is a liquid.
Is freezing an endothermic change or a exothermic change?
It is an exothermic change
Is phenol red toxic?
no
What color is phenol red at a neutral?
Phenol red is made by condensation of Phenol and saccharine.pH below 6.8 = YellowpH above 8.2 = Red/FuschiaGradually turns from yellow to red/fuschia (pH between 6.8 and 8.2 = Pinkish)
What color does phenol red change to when carbon dioxide is present?
It turns a yellow-ish color when CO2 is added.
Is freezing an example of an exothermic chemical change?
No because in an exothermic change energy is released not taken in. Melting would be an example of exothermic change.
Explain the purpose of the phenol red in the medium?
To determine if a bacterium can ferment a particular carbohydrate and determine the end products of that fermentation
