Which compound can act as both a brønsted-lowry acid and a brønsted-lowry base?
a. water
b. oxygen
c. sodium hydroxide
d. hydrochloric acid

Which type of reaction always has an element and a compound as reactants

Strong conductivity of plasma allows it to act and react as and

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.