The pH shows the degree of acidity of alkalinity of a solution. The pH of the HF can be obtained from the ICE table.
<h3>What is pH?</h3>
The term pH refers to the hydrogen ion concentration of a solution. Recall that acids produce hydrogen or oxonium ion in solution.
The first step to determine the pH of the HF solution is to set up the ICE table as shown;
HF + H2O ⇄ H3O^+ + F^-
I
C
E
The values of the initial concentration of HF as well as the Ka of HF are not given. If these two values are give, the pH can be obtained from;
Ka = [H3O^+] [ F^-]/[HF] Knowing that [H3O^+] = [ F^-] = x
Learn more about pH: brainly.com/question/22074421
The correct matches are:
Birds - A
Dinosaurs - B
Amphibians - C
Corals - D
Trilobites - E
By the statements presented, we have the situation where the trilobites are the oldest of the species, thus they will be on the bottom layer. The corals are second ones that emerged, so they will be found in the second bottom layer, and after them come the amphibians that will be found in the third layer. The dinosaurs evolved after the amphibians, so since they are younger than them, they will be located in the second layer from the top, with the birds evolving from the later dinosaurs and being the youngest, they will be found in the top layer.
325 dollars? You have to finish the question for anyone to answer it.
Ra quyết định là hành động hoặc quá trình lựa chọn một phương án ưu tiên hoặc quá trình hành động từ một nhóm các phương án thay thế. Nó đi trước và làm nền tảng cho hầu hết mọi hành vi có chủ ý hoặc tự nguyện. Lựa chọn hành động là quá trình chọn “việc cần làm tiếp theo” trong môi trường năng động và không thể đoán trước trong thời gian thực.
Christopher columbus is it?
