5. A block of copper of unknown mass has an initial temperature of 65.4 °C. The copper is immersed in a beaker containing 95.7 g of water at 22.7 °C. When the two substances reach thermal equilibrium, the final temperature is 24.2 °C. What is the mass of the copper block? (Sketch a picture and consider the heat flow between water and copper.)

All molecules attract each other to some extent, and the attraction decreases as the distance between particles increases. Base on this idea, which state of matter would you expect has the stronges interaction between particles: solid, liquid or gasses?

When a substance changes from a solid to a gas, the process is called?

During a chemical change: A. Chemical composition changes  B. There is only a physical state change C. There are no changes D.  Solids are always formed

What is the product of the reaction below? Cu, OlF citrate Select one: a. HO.

What are the Property’s of water?

Mass is.... which if the following ? (See picture)this question kinda confused me

What would you multiply "atoms of aluminum" by to get the units "grams of aluminum" ? (number) (unit) (number) (unit) atoms Al =g AI (number) (unit) (number) (unit)

Fill in the following diagram that illustrates the relationship between compounds and elements.

One mole of water: a. is a microscopic quantity because it cannot be seen with the human eye. b. is a macroscopic quantity because it cannot be seen with the human eye. c. is a microscopic quantity because it can be seen with the human eye. d. is a macroscopic quantity because it can be seen with the human eye.