5 ml of water is taken in a test tube and concentrated Sulphuric acid is added slowly to it. A) What is the change in the temperature upon addition of acid? Why?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

In in , is to a 28.4-g (1-oz)−23.0 °c to −1.0 °c?

Using the periodic table complete the table to describe each atom type in your answers