Both lemons and apples contain different types of acids. If you are asking which is the more acidic type of fruit, then the lemon is. Apples generally have a pH level of between 3 and 4, whereas lemons generally have a pH level of between 2.0 and 2.5. The lower the number on the pH scale, the more acidic.
An orange has more protein than an apple.
Yes it does
Both soda and orange juice are acidic, but the carbination in most sodas make it more acidic than the mildly-acidic citric acid in orange juice.
Orange
Basically, they're about the same. It will depend on the type of orange and apple, as different breeds of each have slightly different pH's. Most oranges have a pH of between 3.1 - 4.1. Apples tend to have a pH of between 3.3 - 3.9 depending on type. Due to this, there is a wide range of pH's in both types of juice depending on the stock used. Orange juice tends to be between 3.6 - 4.3 once squeezed, and apple juice tends to be in the 3.4 - 4.0 range. This is of course for pure juices. Many juice drinks have additives which alter the pH greatly.
no
yes.
The rate of fermentation depends on various factors such as sugar content, acidity, and presence of nutrients for yeast. Generally, apple juice has a higher rate of fermentation compared to carrot juice due to its higher sugar content. Yeast ferments sugars into alcohol and carbon dioxide, so the more sugar present, the faster the fermentation process.
orange works better because it has more citric acids than apple juice does, all the apple juice will do is make the penny stickier.
orange have more juice because is bigger than the lemon
battery acid with a pH of 0.8
Because of the citrus in the fruit like in a pineapple apple and cranberry juice is more on the sweet side