What is an engineer?
a. a person trained to use technology and science to solve problems
b. a person who manufactures or produces a product
C. a person who markets and advertises a product
d. all of the above

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

How many grams of mgbr2 are needed to produce 75g or metal?

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.