When molten rock undergoes crystallization above ground, what type of rock results?     a. intrusive igneous rock     b. extrusive igneous rock     c. metamorphic rock     d. sedimentary rock

All motion is caused by force? true or false

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.

How to calculate the mass of copper