The metal cadmium tends to form Cd* ions. The fol- lowing observations are made: (i) When a strip of zinc metal is placed in CdCl2(aq), cadmium metal is deposit- ed on the strip. (ii) When a strip of cadmium metal is placed in Ni(NO,),(aq), nickel metal is deposited on the strip. (a) Write net ionic equations to explain each of the observations made above. (b) What can you con- clude about the position of cadmium in the activity se- ries? (c) What experiments would you need to perform to locate more precisely the psition of cadmium in the activity series?

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Q: Please help Thank you

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Q: Cs(s) + FeS(aq)

A:

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.