Item 7 An engineer is designing a shape memory alloy. Which of the following is a limitation of these types of materials? Choose the correct answer.

They are composed of rare metals.

They can wear out after repeated use.

They are difficult to manufacture on a large scale.

They are hazardous when placed in the human body.

How to solve 4 nh3(g) + 5 o2(g) > 4 no(g) + 6 h2o(g) in chemistry

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

What is i fracture in the crust called when land move up, down or sideways