I need help on this assignment. please answer this correctly.

1. Describe generally what happened to each spot of ink

Each ink spotsome distance andinto different colors.

2. Contrast the effectiveness of the two solvents.

3. what is the identity of the mystery ink in the note? Use evidence to support your claim.

4. What observations would lead you to believe that a colored ink is actually a mixture.?

I would believe a colored ink is a mixture of I see it

5. you are given an unknown type of clothing dye. How could you see the procedure in this lab to see if this dye is a mixture?

law of conservation of matter

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.