Which type of elements are lanthanides and actinides part of?

inner transition metals

noble gases

halogens

metals

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas