BALANCING EQUATIONS 2 Explain in as much detail as possible what the following balanced equation tells you. You answer should include
information from the state symbols.

ill give you a brief answer

normally when o2 is attached it is a combustion reaction so this reaction tells that p4 is burned in presence of air to form p4o10 which is the ash that remains

the balanced equation tells that 5 moles of o2 is rrquired to burn 1 mole of p4 to form 1 mole of p4o10

the role of the microscope world in creating new materials .

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.