The design of a new computer processor requires that electric current be carefully controlled. why might an engineer want to use a metalloid when designing a new computer processor?
a) metalloids are amphoteric.
b) metalloids are semiconductors.
c) metalloids are brittle.
d) metalloids are shiny.

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Which of the following is not true about the atomic model of substances?