Identify another natural cyclic event, other than phases and eclipses, that is caused by the moon’s gravitational pull on Earth.

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh