Which of the following solutions behave as buffers? 1. 100 mL of 0.2 M CH3COOH + 50 mL of 0.4 M Ba(OH)2 2. 100 mL of 0.1 M HCl + 100 mL of 0.1 M NaOH 3. 100 mL of 0.2 M NH3 + 50 mL of 0.1 M NH4Cl 4. 100 mL of 0.1 M F− + 100 mL of 0.2 M HF

Select the correct answer from each drop-down menu. daniel and sanya are scientists. daniel is studying whether the increasing frequency of tropical storms is affecting coastal erosion. sanya is investigating whether the discharge from industrial plants has any impact on the ph concentration of freshwater swamps in the surrounding area. which fields of science are daniel’s and sanya’s studies most closely related to? daniel’s field of study is related to science, and sanya’s field of study is related to .

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Gymnast always perform on padded mats. how does the mats protect the gymnast