Question 12 (1 point) How many kJ of heat do you need to raise the temperature of 100 g of Aluminum from 40 °C
to 90 °C?
Remember to convert your answer to kJ. Round your answer to two decimal places.
Specific Heat Capacities
J
ethanol
2.44
9C°
J
aluminum 0.90
9C

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

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