Write the balanced equation and identify the type of reaction for the experiments. 1. Holding the copper wire in the hottest part of the flame for a few minutes.

2. Placing a shiny iron nail and adding CuSO4 solution so half the nail is covered then leaving it there for 15 mins before removing the nail.

3. Having a small amount of CuSO4.5H2O in a test tube and holding it over a flame.

4. Wait until the test tube from question 3 is cooled and than add 2-3 drops of distilled water.

5. 1. Put 10 drops of CaCl2 solution into a test tube.
2. Put 10 drops of Na2CO3 into another test tube.
3. Pour CaCl2 solution into Na2CO3 test tube.

6. Put a piece of mossy zinc in a test tube and than fill the test tube with HCl (aq) until it covers the mossy zinc.

7. Fill a test tube 1/3 with H202 solution, add a bit of Kl (s) and than test the gas involved bt placing a splint into the test tube.

What are transitions between a liquid and gas called? identify which way they are transitioning

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.