Yes, that is possible. The sciences of physics, chemistry, and engineering do not depend upon the ability to write essays.
Typically, all engineering fields require chemistry as well as physics as a part of the engineering curriculum.
Yes it is a possibility. There is no competition for a Pullitzer in Physics, Chemistry, or Engineering.
Yes.
It always depend on the person if he will pass a subject or not.
No. The opposite is true. A person who is good at math will tend to do well in physics and engineering.
Yes
A person who has dyslexia but who is good at math can succeed in the sciences. Science depends much more on math, than it does on writing.
Not necessarily. They may be difficult for you if you're the sort of person that thinks this question makes sense, though.
It is, it will just be harder. So you might have to put extra work to achieve the same result as someone who has a stronger math/physics/chemistry background.The more you know about math, the more you can focus on the actual concept of engineering.
They may do OK in physics, chemistry or engineering but it is unlikely that they will do particularly well. In their career, there will be times when they need to write up reports on their work. Or they may need to "sell" their ideas for research funding, or for business finance. Their audiences will be busy people, receiving many such reports or applications and will not wish to spend time reading poorly presented work.
A person would be hired for a chemical engineering job from a chemist, or from a person that has a degree in chemical engineering, or possibly a chemistry teacher. You could apply for a chemical engineering job online.