A construction worker strikes a concrete wall with a hammer. The wall does not move, and the hammer does not break. Describe the collision of the hammer and wall by using Newton's Third Law. (Do not just write down Newton's Third Law; describe the forces in the collision including size and direction.)

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.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

If maltose undergoes hydrolysis what subunits does it results to?