How much does Suitcase weight if it has a mass of 22.5kg

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Why is carbon ideal for making different compounds?

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.