Which of the following is the correct skeleton equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide?
a. P(s) + O2(g) → PO2(g)
b. P(s) + O2(g) → P20($)
c. P,03(s) → P2(s) +0,(g)
d. P(s) + O(g) → P,02(g)

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

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.