_Ca Brz+_Mg(NO3)2_Ca(NO3)2+_MgBr2
balancing equatios​

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

In salt water solution,the salt is the blank

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?