14.3 what are transition elements

Question 1

what are transition metals

Answer 1

transition metals are the block of metals found in group 3-11 of the periodic table

Question 2

properties of transition metals

Answer 2

• high melting points and high densities
• coloured compounds

Question 3

colour and oxidation state of chromium

Answer 3

green
+3

Question 4

colour and oxidation state of iron

Answer 4

pale green
+2

Question 5

colour and oxidation state of manganese

Answer 5

brown black
+4

Question 6

colour and oxidation state of copper

Answer 6

red
+1

Question 7

colour and oxidation state of potassium dichromate (vi)

Answer 7

orange
+6

Question 8

colour of iron (iii) chloride and oxidation state

Answer 8

yellow
+3

Question 9

colour of potassium maganate (vii) and charge

Answer 9

purple
+7

Question 10

colour of copper (ii) oxide and oxidation state

Answer 10

black
+2

Question 11

transition metals and their compounds are good __

Answer 11

catalysts

Question 12

what is a catalyst

Answer 12

a catalyst is a substance that increases the rate of a chemical reaction. and remains chemically unchanged at the end of the reaction