Combustion of gasoline in automobiles produces poisonous gases. catalytic converters that contain solid platinum, palladium, and rhodium change these poisonous gases into harmless gases. which statement describes the catalyst?
it is a homogeneous catalyst.
it provides an alternative pathway for the reaction.
it combines with poisonous gases to make them harmless.
it increases the energy that is needed for the reaction to occur.

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

How many atoms are there in 5.70 mol of mg

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.