During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that
apply.
all of the copper dissolved.
all of the aluminum dissolved.
the solution turned clear.
the number of grams of copper(ii) chloride used in the reaction was greater than the number of
grams of aluminum.
the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation's molar ratio.

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

Which position represents spring in the southern hemisphere? a) b) c) d)