Answer:
The equilibrium equations for the three ionizations in histidine with pK_{a} values are in attached document.
Hisidine has three ionizable functional group namely, the carboxylic group, amino group and nitrogen in the imidazole ring.
The structure of histidine in each ionization state is also attached.
Here, as from the attached diagrams the net charge in first, second and third ionization state is +1, 0 and -1 respectively.
The use of ICT for Teaching and Learning help learners to live and work in the 21st century as people do not need to go to the office but work from the comfort of their home such as online teaching.
<h3>How does Ralph Tyler see the curriculum?</h3>
Tyler is known to be a person who believed that learning is one that is always meaningful to the student and also the community at large.
He believed that, student that have been e taught through the right designed and organized method of learning will do well and that students learning should be evaluate to see if they are improving or not.
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The statement which describes this phenomenon is; Electrons flow freely into the magnetic field, causing the paper clips to move.
<h3>Metals and the Electromagnetic field</h3>
- Metals are made up of positively charged atoms of elements in which case the outermost orbital of these metal atoms contain electrons revolving round them.
On this note, upon interaction with the electromagnetic field posed by an electromagnet placed nearby, it follows that;
- The Valence electrons flow freely into the magnetic field created by the electromagnet and hence, causes the paperclip to move.
The complete question contains options given are;
Metal paper clips do not attract or repel each other. When an electromagnet is placed nearby, the paper clips can be observed to move toward it. Which statement describes this phenomenon?
- Paper clips turn into permanent magnets after exposure to a magnetic field.
- The electromagnet reacts to the strong force of attraction from paper clips.
- Electrons flow freely into the magnetic field, causing the paper clips to move.
- Magnetic domains within the paper clips align with the magnetic field.
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