The decomposition of n2o5(g) —> no2(g) + no3(g) proceeds as a first order reaction with a half life 30.0s at a certain temperature.
if the initial concentration [n2o5]0 = 0.400 m, what is the concentration after 120 seconds?
a)0.050
b)0.200
c)0.025
d)0.100

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.

Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet