Complete the following single replacement reaction. if they don’t react, just write “nr” 1). fe(s) +cucl2(aq) 2). cu(s) + fecl2(aq) 3). k(s) + nibr2(aq) 4). ni(s) + kbr(aq) 5). zn(s) + ca(no3)2(aq) 6). ca(s) + zn(no3)2(aq)

How do scientists think that gravity affected the formation of our solar system?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.