The skateboarder moves himself forward by pushing back with his foot on the ground. Which of Newton’s laws says for every action, there is an equal and opposite reaction. Law of inertia
Law of acceleration
Law of action-reaction

Law of action-reaction

Explanation:

Every action results in an equal and opposite reaction

the term hydride is commonly named after binary compounds that hydrogen forms with other elements of the periodic table. hydride compounds in general form with almost any element, except a few noble gases. the trends and properties vary according to the type of intermolecular force that bonds the elements together, the temperature, its molecular masses, and other components. hydrides are classified into three major groups, depending on what elements the hydrogen bonds to. the three major groups are covalent, ionic, and metallic hydrides. formally, hydride is known as the negative ion of a hydrogen, h-, also called a hydride ion. because of this negative charge, hydrides have reducing, or basic properties. its special characteristics will be further discussed.

explanation: