Mrs. Andrews did a science demonstration with dry ice. First, she placed some dry ice inside of a balloon. Then she tied off the ballon and placed it on a triple beam balance. The balance showed that the combined mass of the balloon and dry ice was 22 grams. While the balloon sat on the balance, it began to expand. As the dry ice sublimed, or changed from a solid into a gas, the gas filled the balloon. When the dry ice had sublimated completely, how much mass was sitting on the balance and why?

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.

Across of blue x blue (both heterozygous) would result in