A sample of aluminum with mass of 53.5 g is initially at 149 ∘C. What is the temperature of the aluminum after it loses 2.71 x 103 J?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.

How can a mixture of salt water be separated into salt and water