A block of Styrofoam floats on water while a lead block of the same size block lies submerged in the water. The buoyant force is greatest on the

If Tc-99m has a mass number of 99, how many neutrons are in the nucleus?

You move to Florida and are expecting a hurricane to occur at your home.  You are concerned about your windows breaking due to the pressure difference caused by the flowing air.  Will your house have higher or lower pressure compared to the air flow inside?  If your windows shatter will they shatter towards the inside or the outside of the house?

The Christian Coalition is best described as a(n) __________ group.

The set of social and political institutions that help shape the acquisition of political beliefs and values are referred to as

Hospitals use Technetium-99m in imaging because it emits gamma radiation but decays quickly. What type of nuclear change is happening when Tc-99m gives off radiation?

The _________ was added to the Constitution to decrease the voting-age from 21 to 18.

Chlorine is also found in table salt. Based on Bohr’s model, why does chlorine tend to form a –1 ion?

Table salt is made of sodium (Na) and chlorine (Cl). According to Bohr’s model, why does sodium tend to form a +1 ion?

The rate of inflation is measured by