Which of the following is an example of positive acceleration? q a boy running from his house around the block and ending up back home. a car slowing down as he turns left around a curve. a track star speeding up as he sprints to the finish line. a horse standing in a pasture.

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

Can someone me with 1 to 4 plz. fast