The mass of density bottle is 18kg when epmty ,44kg when full of water and 39.84 when full of second liquid . Calculate density of liquid

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

Aball horizontally thrown from a cliff at 8m/s

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped