Anthony walks to the pizza place for lunch. He walk 1km east then 1km south and then 1km east again what distance did he cover? What was his displacement?

What explains the observation that elements in the same chemical group have similar chemical properties?

T he thermochemical equation for the reaction between hydrazine, N2H4, and dinitrogen tetroxide is given as: 2N2H4 (2) N204 (1) 3N2 (g) + 4H20 (g), AHO-1049 kJ What is the corresponding thermochemical equation for this reaction when 6 mol of

True or false: In chemistry and physics, Dalton's law (also called Dalton's law of partial pressures) states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases.

You buy a balloon at the grocery store and walk outside into - 10F temperatures. what happens to the balloon? the balloons temp increses the vol increases the vol decreases the vol stays the same

In a solution of brine (salt water), what is the salt? a solute a solvent a solution a reactant a product

Much of life on Earth is based in aquatic biomes. What property of water allows life to survive in liquid water?

A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have? 13 9 5 4

Calculate the maximum mass of carbon dioxide that could be obtained by adding excess hydrochloric acid to 15 g of calcium carbonate.

True or false: during dry weather, the water level in a small pond drops because of runoff.

Bradley hit a baseball with a bat. The baseball then hit a window and caused the window to break. Where did the energy that broke the window come from?