Question

Answer the questions please....​

Answer 1

Answer:

1. because it is a metal in liquid form.

2. it sometimes chages because of holding thermometer.

3. it is less reactive metal and also in water form

4.don't know brother

Answer 2

1) We cannot use a mercury thermometer at low temperatures because heat does not flow from the body whose measurement we are taking with the thermometer. C.) At low temperatures mercury becomes transparent and it becomes difficult to take the readings.

2) It advised not to hold the thermometer by its bulb while reading it because the actual reading of human body temperature will get affected. This is for the reason that level of Mercury raises due to human body temperature. The standard way to hold the thermometer is from its top end.

3) Mercury is used in thermometers because of the given reasons below :

• 1 Mercury is the only element that has a large value of coeffcient of expansion.

• 2 When it is used in the thermometer, very little change in the temperature can be found out.

• 3 It has the capability to measure temperatures that are high.

• 4 It does not get stuck to the surface of the thermometer which is made of glass.

4) Mercury. Silver liquid indicates that the thermometer contains mercury, while the red liquid is alcohol to which red coloring has been added. Although uncommon in modern thermometers, a clear color indicates water.