PLS ANSWER FAST WILL GIVE What is the overall charge of an atom?

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Who was the first scientist to measure speed as distance over time?

An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?