Answer: i think is chemical is correct answer
The correct answer is Water, H2O. One oxygen and 2 hydrogen ions.
Different sounds with the same pitch still sound different because they all have different distribution of frequencies. But this happens because of timbre and every instrument has its own timbre.
Answer:
C
Explanation:
Iodine is used to test for starches. When iodine is placed in a solution with starch (non-reducing sugars) it turns blue-black color. When amylase, a starch, is mixed with saliva, it is ‘digested’ to glucose, a reducing sugar (the brown colour of the aqueous solution remains).
