When Kyle took the mass before the reaction it was 140 grams. Based on the Law of Conservation of Mass, the mass AFTER the reaction should be A. 140 grams B. lower than 140 grams C. higher than 140

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

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

In the reaction between a crushed antacid tablet and vinegar what gas is emitted