Hiker A has a body mass of 60 kg and carries a 10-kg pack. Hiker B has a body mass of 70 kg and carries a 20-kg pack. At the top of the mountain they're climbing, which hiker has the most gravitational potential energy?

Will you arrange the following substances according to their lattice energies, listing them from highest to lowest: MgS, KI, GaN, LiBr?

Why do gases exert pressure on the container? * The gas particles hit each other. The gas particles move quickly in all directions. The gas particles hit the container wall.

Metal cations are atoms that have a positive charge. What type of bond is a metal cation likely to form? A. covalent bond B. double bond C. single bond D. ionic bond

In run 1, you mix 8.0 mL of the 43 g/L MO solution (MO molar mass is 327.33 g/mol), 2.60 mL of the 0.040 M SnCl2 in 2 M HCl solution, 5.43 mL of 2.0M HCl solution, and 3.73 mL of 2.0M NaCl solution. What is the [Sn2 + ]?

Describe the relationship between Avogadro's number and one mole of any substance.

In which way does a na1 + ion differ from a neutral na atom?

Which would not be associated with stable atmospheric conditions afternoon thunder showers is the answer

Which is not a characteristic of a compound? It is a mixture of elements. It has properties that differ from its component elements. It has a fixed proportion of elements.

Can you think of other possible ways scientists can determine what climate was like in the past besides studying ice cores?

Which sub-layer thins out into space, where there is no air