compare the mass and volume of each object what is true of the mass and volume of all the floating objects

The conversion of -70 degrees Celsius results in 9/5 x C + 32 = 158 degrees Fahrenheit. CO2 transitions to solid state at -108.5 degrees Fahrenheit, indicating that at -70 degrees Celsius, it will be in the state commonly known as 'dry ice'.

Answer:

A, B, and C

Explanation:

Indeed, atoms possess mass and serve as the fundamental building blocks of chemical elements. While matter is composed of atoms, these particles themselves do not occupy physical space.

Atoms consist mostly of void, which excludes them from the other responses.

This confirms that A, B, and C are the right choices.

A indicates the power lines are what truly conducts (or transmits) the power.
Options B or E are incorrect, as wood is not a good conductor. That's why it's commonly used in homes to retain heat (which comes from electricity), preventing it from escaping.
Option C is also not correct since rubber, similarly, is a poor conductor. Like wood, it acts as an insulator, not transmitting heat (or electricity). This is why rubber gloves are utilized during electrical work.
Option D is valid—most metals are excellent electricity conductors. For instance, copper pans are efficient in cooking because copper effectively conducts heat. Being a metal, this is also why wire cutters have rubber grips; it isolates the user from potential electric shock from the conductive metal. The rubber serves as a barrier to protect against electrocution when handling wires or electricity.

D.) Gas X possesses a lower density and effuses more quickly than Gas Y. Explanation: Gas X has a lower molar mass compared to Gas Y, and the density of a gas is directly proportional to its molar mass. Therefore, it has a lower density than Gas Y. Thomas Graham discovered that, under constant temperature and pressure, the effusion rates of various gases are inversely related to the square root of their molar masses (M). Consequently, a gas with a lower molar mass will effuse faster than one with a higher molar mass. Thus, Gas X effuses faster than Gas Y. So, the correct selection is: D.) Gas X has a lower density and effuses faster than Gas Y.