2HCl + Ca(OH)² --> CaCl² + 2H²O me podrian sacar el balance y masaa plis

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.

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next

Uuestons niuthe no. of millimoles of hcl required to neutralize 10 ml of 0.2 m na2co3 is(a) 2.0 m mole(b) 4.0 m mole(c) 0.2 m mole(d) 0.4 m mole