The source of power in a nuclear power plant comes from A) burning hydrogen atoms. B) reacting uranium atoms. C) splitting uranium nuclei. D) combining hydrogen nuclei.

Which best describes the relationship between heat, internal energy, and thermal energy? O Internal energy is heat that flows, and heat is the part of thermal energy that can be transferred.

Compared to the particles in a hardened lava sample, the particles in a liquid lava sample A. Have less kinetic energy B. Are closed together C. Are moving faster

When a solid such as ice begins to melt, heat energy is added. What is the function of this added heat energy? a. to increase potential energy b. to separate hydrogen atoms from oxygen atoms c.

A gas sample has an initial pressure of 547 mmhg and an initial volume of 0.500 l. what is the pressure (in atm) if you decrease the volume of the sample to 225 ml?

A Rock is determined to be 1.426 billion years old. How much uranium-235 remains in the rock?

Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 + H2O + energy → C6H1206 + O2 What are the products in this chemical reaction? O A. C6H1206 + energy O B. H20 + energy O C. CoH1206+02 O D.

Using ohm's law, explain how voltage changes in relation to current, assuming that resistance remains constant.

An average copper penny minted in the 1960s contained about 3.000 g of copper. how much chalcopyrite had be mined to produce 100 pennies?

Which pack has the greatest change in enthalpy, warm packs (such as hand warmers) or cold packs (such as an ice pack) ?

A gay cylinder what are the variables in gay-lussacs law