For the balanced reaction PC13 + 3H,0 – H3PO3+ 3HCI
How many grams of HCl can
be produced from 27.7 g of
PC1, and excess water?
PC1z=137.33 HCI=
36.46

Based on the equation and the information in the table, what is the enthalpy of the reaction?

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

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size