Exercise fill in the blanks. A quantity, which has both magnitude and direction is called quantity The amount of matter contained in a body is called The weight of a body as the altitude increases, and as the latitude decreases. Huid friction is the force exerted by air and water on a moving body Frictional force with the decrease in viscosity of the fluid Flying bodies and aquatic animals are to reduce friction Pressure is directly proportional to​

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

Drug abuse will not lead to physical and psychological dependence. true or false ?

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.