Some cotton wool soaked in ammonia solution was placed at the other end. the hydrochloric acid end of the tube than the ammonia solution end.
Some cotton wool soaked in hydrochloric acid was placed at one end of a glass tube.
when they meet to form a white solid called ammonium chloride.
Hydrochloric acid produces a gas. So does ammonia solution. These two gases react
What is the name of the process by which the gases move along the tube?
b Explain how this process takes place.
The particles of hydrochloric acid have a greater mass than the particles
of ammonia. Suggest why the ammonium chloride is formed nearer to
warm place.
6.2
The diagram shows what happened.
cotton wool soaked
in ammonia solution
cotton wool soaked
in hydrochloric acid
white band of ammonium chloride
formed when the gases meet
a
с
12
[21

We all use gps today, even if we don't drive yet. i bet you have been in the car with a parent and they have asked you to get out your phone to find a specific location. in your car, on the phone, you are using a very sophisticated technology. gps satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. gps receivers take this information and use trilateration to calculate the user's exact location. essentially, the gps receiver compares the time a signal was transmitted by a satellite with the time it was received. the time difference tells the gps receiver how far away the satellite is. now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map. what type of signal is utilized by the gps satellite?

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.