(ii) Cobalt is mixed with other transition metals to make alloys. These alloys are used to make cutting tools which remain sharp at very high temperatures. They can cut through other metals. Suggest two properties of transition metals that make them suitable for making cutting tools. __ 1 .... 2 .................... . ................................. .............................

## Step 1: The question is asking for two properties of transition metals that make them suitable for making cutting tools. Transition metals are a group of elements in the periodic table that have specific characteristics. ## Step 2:The first property that makes transition metals suitable for making cutting tools is their high melting points. This means that they can withstand very high temperatures without losing their shape or structural integrity. This is crucial for cutting tools which often need to operate under high heat conditions.### The formula for the melting point of a substance is: ** **Where:- is the melting point temperature,- is the heat energy required to change the state of the substance,- is the mass of the substance, and- is the specific heat capacity of the substance.## Step 3:The second property that makes transition metals suitable for making cutting tools is their hardness. Hardness is the resistance of a material to deformation, usually by indentation. This property also makes transition metals resistant to wear and tear, which is a desirable quality in cutting tools.### The formula for hardness is often measured by the Brinell hardness test, which is given by: **\( HB = \frac{2P}{\pi D(D - \sqrt{D^2 - d^2})} \)**Where:- is the Brinell Hardness Number,- is the load applied,- is the diameter of the indenter, and- is the diameter of the indentation.