Chlorine gas was used as a weapon, in the first major gas attack against the enemy, by this country in 1915. name the country.

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

A5.00 g of a in . g of at aa 5.00 g of b in . g of .?at .

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave