Acacia ants live near or on acacia trees. The ants harvest and feed on the orange tips of the leaves, and they find shelter among the roots. The ants also protect the tree from leaf-eating animals, like giraffes. Giraffes do not like the taste of the ants! 4. What is the relationship between the ants and the tree?

A.
mutualism

B.
commensalism

C.
predator/prey

D.
parasite/host

Can anyone (a-level) a student was analysing a carbonate compound, mco3, containing an unknown group 2 metal, m. the student carried out thermal decomposition on 0.730g of the carbonate and measured the volume of gas produced. mco3 (s) mo (s) + co2 (g) the student collected and measured 120cm3 of carbon dioxide. 1 mol of carbon dioxide occupies 24 000 cm3 under these conditions. calculate the molar mass of the group 2 carbonate and hence deduce the identity of the group 2 metal, m.

1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →

If two identical atoms are bonded,what kind of molecule is formed