A125 g block of an unknown substance with a temperature of 90.0°c is placed in a styrofoam cup containing 0.326 kg of water (c 4190 j/kg.°c) at 20.0 °c. the system reaches an equilibrium temperature of 22.4 °c. what is the specific heat, c, of the unknown substance if the heat capacity of the cup is neglected?

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer

Which two particles are found in the center of an atom

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole