2. The drawing below illustrates an interaction between different substances. Which statement below best explains what the drawing illustrates? A. Compounds can combine to form different elements. B. Atoms of different elements can combine to form compounds. C. Atoms of different elements can combine to form other elements. D. Compounds can be broken down to into the various elements from which they are made.

the answer is b i think

it is called kinetic energy

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west