Which of the following chemical equations is unbalanced?
a. n2 + 2h2 2nh3
b. 2h2 + o2 2h2o
c. p4 + 5o2 p4o10
d. 4na + o2 2na2o

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Choose each of the settings that follow and list them below do it ill mark brainliest first object= position= speed= acceleration= second object= position= speed= acceleration=