myles

The bond enthalpy of F2(g) is 156.9 kJ/mol. Calculate ÄH°f for F(g). 1 kJ/mol

how do you graph quadractic function

a very bright source of red light has much more energy than a dim source of blue light, but the red light has no effect in ejecting electrons from a certain photosensitive surface. why is this so?

Calculate the volume (mL) of 2.06 M magnesium phosphate solution require to prepare 46.20 mL of 2.3998 %w/v solution of Mg3(PO4)2

Calculate the volume of 2,180 ppm Pb(NO3)2 solution required to prepare 1.2550 L of a 0.0021 M Pb2+ solution.

Can someone help? Your make a scale drawing of a tree using the scale 5 in. =27 ft. If the tree is 67.5 ft tall, how tall is the scale drawing?

Please Help. You make a scale draing of a garden plot using the scale 2in.= 17ft. If the length of a row of vegetables on the drawing is 3 in.,how long is he actual row?

Please help. The scale factor of ^RST to ^DEC is 3:13. What is the scale factor of ^DEC to ^RST?

Please help. The scale factor of ^RST to ^DEC is 3:13. What is the scale factor of ^DEC to ^RST?

Please Help. MNOP~Qrst with a scale factor of 5:4. MP=85mm. What is the value of QT?

18 feet and 5 yards in a ratio simplest form

What is the thermal/heat energy needed to raise 0.10 kg of silver by 25°C? *

which process proceds most of the oxygen in earths atmosphere phototsynthesis or transipation what gas does photosyntheses produce carbon dioxide or oxygen grasss-grasshopper--snake--hawk if apart of the food web qouls mORE ARROWS POINT TOWARD OR AWAY FRO...

how would i use 2180 as a c1 or c2?

thanks

Felipe has saved $625. He is starting a part-time job that pays him $150 a week, and he plans to save all of the money he earns. Which algebraic expression represents Felipe's total savings after x weeks?

all solns to this please