Which is a heterogeneous mixture? a glass of tap water a jar of mixed nuts a gallon of milk a mug of hot cocoa

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost

Of the following elements, which is the least reactive? a. c b. h c. li d. he