PLEASE HELP Fossil fuels such as gas, oil, and coal have what kind of energy? Question 3 options:

Mechanical energy

Chemical energy

Electrical energy

Nuclear energy

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .

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.

What is the percentage of hydrogen in c2h4