A solution contains two substances, x and y, both volatile components. Calculate the
vapor pressure (in torr) of this solution
when the mole fraction of x is 0.82.
Assume ideal behavior.
Px = 320 torr
P = 412 torr

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device