Alchemists searched for ways to change lead into gold. Which type of change must occur for this conversion to happen?

Which statements did both aristotle and ptolemy assume? check all that apply.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? round your answer to the nearest tenth. s how far will the football travel before it lands? round your answer to the nearest tenth. m

Atoms in a molecule are bonded together by sharing gaining or losing_