Which of the following is not an acid-base neutralization reaction? (3 points) nh3 + hcl yields nh4cl naoh + ch3cooh yields na ch3coo + h2o 2hno3 + ca(oh)2 yields ca(no3)2 + 2h2o h2so4 + 2nacl yields 2hcl + na2so4

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space