How much heat must be added to heat 0.750 g of water from 20.0°C to 40.0°C? (Remember, Q=C * m *ΔT) The specific heat of water is 4.186 joule/gram. Question 4 options: A) 322 kJ B) 126 kJ C) 62.8 J D) 62.8 kJ

At stp, what is the volume of 1 mole of co2?

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