To which of the three main chemical classes does Mercury (Hg) belong? a) It's not an element in the periodic table
b) Metalloids
c) Non-metals
d) Metals

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride