If 200 g of water is heated from 20 C to 40 C, then what is the heat added in kilocalories (same as food calories)?

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

Fossil fuels are organic compounds that are made from

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?