How many joules of heat is needed to raise the temperature of 10.0 g of aluminum from 22 ° C to 55 ° C, if the specific heat of aluminum is 0.90 J / g? C?

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

How much would the freezing point of water decrease if 4 mol of nacl were added to 1 kg of water (kf=1.86 degrees c/(mol/kg) for water and i=2 for nacl a- 7.44 degrees c b- 14.88 c 3.72 d 1.86

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate according to the following equation: