They contain atoms including nucleus proton electron and neutron
Answer:
The wood
Explanation:
The block of wood shall float in the water while the iron key would sink due to the weight.
Mg(c) + 237shi (4z) ¥at h2)
Answer:
Explanation:
Mass box A = 10 grams; Mass box B = 5 grams; Mass box C—made of one A and one B How many grams of A would be needed to give the same number of particles: as 7.5 grams of B? 20 as 2.5 grams? 12.5 as 12.5 grams? 37.5 as 1 gram? 2 Count the number of molecules in the diagram of water formation given in the lesson to complete the following ...
