Give the correct balanced equation for the single replacement reaction of magnesium with aluminum oxide.
a) mg + alo → mgo + al
b) mg + al2o3 → mgo + al
c) 3mg + al2o3 → 3mgo + 2al
d) mg + al2o3 → mgo3 + al2

The clouds are grey and ground is wet. a quantitative b qualitative

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.