The answer is (C) 2 hydrogen atoms
Answer:
Teaching
Explanation:
Teaching or tutoring is a type of human job that gives strength to other individuals by impacting them with the necessary knowledge or skills they required to survive in life.
Teachers or tutors are the people that carry out this task.
It should be understood that the most important thing that people need to survive in life is information. And when they are given the information they will do exploit.
Answer:
HfCl3
Explanation:
Step 1
Divide the percent by mass of each element by its relative atomic mass
Hf- 62.2/178.5, Cl-37.4/35.5
0.348, 1.054
Step2
Divide through by the lowest ratio
0.348/0.348, 1.054/0.348
1, 3
Therefore the empirical formula is HfCl3
Answer: It shows a type of matter in the tube
mass is how much material in an object and weight is how much it weighs
20
Explanation: use its length instead of height: pipe volume = π * radius² * length , where radius = inner diameter/2 . The volume of a pipe is equal to the volume of a liquid inside (if a pipe is fully filled with it).
