What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°C to 70.0°C when 2,520 J of
heat is applied?
Use q=mC. AT
O 0.00420 J/(g•°C)
O 0.00661 J/(g. °C)
238 J/(g. °C)
O 252 J/(g. °C)

How are isotopes of the same chemical element alike? how are they different?

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization. a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution. part bcalculate the percent ionization of ha in a 0.010 m solution

If a fast moving car making a loud noise approaches and moves past the person what will happen as the distance between the two increases?