Suppose two chemicals are reacted together. it takes 1000 kj of energy to break the bonds of the reactants and 850 kj of energy are released by the formation of the products. what is the change in energy for the reaction? a) 0kj b)150kj c)-150kj d)850km

Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?