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)

Iknow the answer is a but i don't know why

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount