calculate the heat given off when 177g of copper cools from 155 C to 23 C. The specific heat of copper is 0.385 J/g C

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

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.

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers