I feel dumb but help:
assume you are going up in the atmosphere in a helium balloon in an attempt to break the world free fall parachute record. The temperature reading outside your capsule has been steadily decreasing but has now begun to increase. This means you must be leaving the ___ and entering the ___

What is the force of attraction between the particles in a salt crystal

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams