Which two of these are chemical reactions? tick two boxes.
you
dissolve a spoonful of sugar in water.
bread goes
brown in the toaster.
you take an
ice lolly out of the freezer and it strats to melt.
frost forms on
the grass an a cold night.
you strike a
match to light a bunsen burner.

1. they vary with a higher number because boiling is way hotter than melting

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.