It's true that the substance is contain 75% carbon and 25% H
Answer:
(B) saprophytes
Explanation:
parasite-an organism that lives on or in a host organism and gets its food from or at the expense of its host.
symbiotic-an evolved interaction or close living relationship between organisms from different species, usually with benefits to one or both of the individuals involved
Answer:
30 protons
Explanation: Each zinc isotope contains 30 protons, 30 massive, positively charged nuclear particles
30 protons, 34 neutrons, and 30 electrons.
To determine the ratio of [a–]/[ha] of a solution of formic acid, we use the Henderson–Hasselbalch equation which relates the pH, pKa and the concentration of the ions in the solution. It is expressed as:
pH = pkA + log [a–]/[ha]
Substituting the values given,
3.75 = 3.75 + log [a–]/[ha]
0 = log [a–]/[ha]
[a–]/[ha] = 1
Therefore, the concentration of the CHOO- ion and the formic acid are equal.