This is the teacher's method. Step 1 find the mass of the reduction tube
Step 2 add some of the lead oxide to the reduction tube
Step 3 find the mass of the reduction tube and lead oxide
Step 4 pass hydrogen gas over the lead oxide and ignite the hydrogen at the hole
Step 5 heat the lead oxide strongly for 10 minutes
Step 6 keep passing hydrogen through the reduction tube until the tube and contents are cool Step 7 find the new mass of the reduction tube and its contents
(i) Give a reason why hydrogen is passed through the reduction tube until the tube and contents are cool.

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

What are the chemical names of these compounds? ke: mg3n2: reset next