Which statement is true? (please answer asap)
•elements are made of 2 or more different atoms
•elements are made of atoms that are all identical
•compounds are made of atoms that are all identical
•compounds combine to form elements

What element is able to combine with itself and hydrogen to form large molecules ?

Drag each label to the correct location on the chart. match the function to the type of tissue

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.