Ascientist has developed a new type of material that is suppose to float on water. this material has a mass of 2.0g for every 3.0cm3 of volume. will this material float on water (density= 1.0g/cm3) explain

Yes, the material will float because it has a lower density than that of water. A material will float if it has a lower density than that of the liquid it's placed in. So let's first calculate the density of this new material. Density is simply mass per volume, so doing the division. 2.0 g / 3.0 cm^3 = 0.67 g/cm^3 The density of water is 1.0 g/cm^3 and since the density of the new material is less at 0.67 g/cm^3 it will float.

Wagons/motorized vehicles

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o