An Inflatable emergency life boat is sitting in a bag and the mass is measured. The cord is then pulled. The mass is measured again after the cord is pulled and it turns into a raft. What do you think will happen to the mass of the boat before and after the pull? a. get bigger
b. stay the same
c. get smaller

Explain your answer in 2-3 sentences. Explain if this example shows conservation of mass.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.