During an experiment, a student adds 0.601 g of calcium metal to 150.0 mL of 1.65 M HCI. The student observes a temperature increase of 13.0 °C for the solution. Assuming the solution's final volume is 150.0 mL, the density is 1.00 g/mL,
and the specific heat is 4.184 J/(g.°C), calculate the heat of the reaction, AH X
Ca(s) + 2 H+ (aq)
Ca2+ (aq) + H2(g)

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?