a sample of aluminum metal absorbs 9.86 j of heat, upon which the temperature of the sample increases from 23.2 to 30.5. Since the specific heat capacity of aluminum is 0.90. What is the mass of the sample

8. If the distance between the Earth and the Sun were increased, which change would occur? A) The apparent diameter of the Sun would decrease. B) The amount of insolation received by the Earth would increase.

The K w for water at 0 ∘ C is 0.12 * 10 - 14. Calculate the pH of a neutral aqueous solution at 0 ∘ C.

Round to 3.455 cm into 4 significant figures

Write the differential equation for steady-state diffusion and homogeneous chemical reaction at constant reaction rate K in a cylindrical rod. Determine the solution for the HCl concentration in the rod.

Which set of coefficients would balance the following chemical equation? H3PO4 + RbOH → H2O + Rb3PO4

What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Tina has a sample of gaseous water at a temperature of 400 C and a pressure of 4 atm. If Tina increases the pressure to 200 atm, will the gaseous water liquefy? Why or why not?

Label the molecular shape around each of the central atoms in the amino acid glycine. hint

Which has more atoms, 2moles of carbon or 2 moles of aluminum

At 100 degrees c, water reacts with acetic anhydride to make acetic acid. also, at 100 degrees c, water reacts with acetylsalicylic acid and reverts it to salicylic acid and acetic acid.