What is true for two pieces of iron at the same temperature?

Heat flows from the larger object to the smaller object.

The average kinetic energy of their particles is the same.

The total kinetic energy of their particles is equal.

Heat flows from the object with higher potential energy to the object with lower potential energy.

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?