Nthe reactants of the general form of the single replacement reaction, the 'b' represents a cation. metallic gaseous 2. single replacement reactions only occur when is more reactive than b, a a, b 3. gold is used for connections in computers because it is very unreactive reactive

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec