How is a large volume of Carbondioxide made portable for filling soda water bottles ?

How can you say a bottle is PET Bottlle? Collect different kinds of water bottles of your classmates and look at them carefully. What number is marked in the center of the triangle?

A gaseous hydrocarbon consumed 5 times its volume of oxygen as for combustion. The volume of CO_(2) produced in the reaction is thrice the volume of hydrocarbon under the same conditions How many grams of water is produced by combustion of 0.1 mol of the givenn hydrocarbon?

A motor is used to lift water from a well of depth 10m and to fill a water tank of volume 30m^(3) in 10 minutes. The tank is at a height of 20m above ground. If 20% of energy is wasted, the power of the motor is

Ravi prepared carbondioxide using baking soda and vinegar. Carbondioxide changed lime water into milky white. Represent this experiment in a diagram with labelling.

Every child in your school brings a water bottle containing 2L of water. If all the water is poured into a container which has 2 kilo litre capacity of water. It was found that it needed 600 litres more to be filled. How many children poured water bottles in the container?

Consider the following situations. In each find out whether you need volume or area and why ? i) Quantity of water inside a bottle. ii) Canvas needed for making a tent. iii) Gas filled in a cylinder.

Rearrange the following sentences in a correct order (i)You observe bubbles coming out with a hissing sound. Pass this gas through freshly prepared lime water(ii)Carbondioxide and Calcium Carbonate are formed. Hence it is a chemical change(iii)Take a tea spoon of vinegar in a test tube and odd a pinch of baking soda to it(iv)Lime water changes to milky white showing that the gas sent into the test tube is carbondioxide