Different types of gas experiments

The Pop test 

Metal + Acid

Equation

- metal + sulfuric acid = metal salt + hydrogen.

Aim

-to show that hydrogen gas is produced when a metal reacts with acid

Equipment

-test tube

-boiling tube

-bunsen burner

-wooden splint

-bottle of acid

-a piece of metal

-safety glasses

Method

- light the bunsen burner

- add ou sample of metal to your test tube. Add 2 ml of acid

- carefully invert the boiling tube above the test tube containing the metal and acid.

- hold the test tubes together for a few minutes, allowing time for the inverted boiling tube to fill with gas.

- when you think the tube is full, you lab partner should light a wooden splint

- carefully, but quickly, tilt the boiling tube full of gas upwards and insert the burning splint into the mouth of the test tube.

Conclusion

- when we light the wooden splint with fire and put in the mouth of the tube it made a sound a popping sound.

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Glowing Splint

Metal + Oxygen

Equation

metal oxide + hydrogen peroxide = Metal hydroxide + oxygen

Aim

-to make a metal oxide and observe the difference in properties of the product compared to the reactants

Equipment

-a piece of magnesium

-bunsen burner

-safety glasses

-metal scissor tongs

Method

-light the bunsen burner

-hold the piece of magnesium in the scissor tongs. Ensure you are holding onto the very tip of the magnesium.

-place the other end of the magnesium into the bunsen flame(at the top of the blue flame)

-when the magnesium begins to burn, do not look directly at it, as the light emitted can permanently damage your eyes

Conclusion

We fire the magnesium and then it burn up into a real bright light for a few second. Then after that it turn into a white powder and its silver, grey, and kinda soft.

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Lime water test

Metal Carbonate + Acid

Equation

metal carbonate + acid = metal salt + water + Carbondioxide

Aim

-to show that carbon dioxide gas is produced when a metal carbonate reacts with acid

Equipment

-2 boiling tube

-delivery tube and bung

-bunsen burner

-test tube rack

-wooden splint

-bottle of acid

-small amount of metal carbonate

-test tube tongs

-safety glasses

Method

-light the bunsen burner

-add a 'pea-sized' amount of the metal carbonate into one of the boiling tubes

-place this boiling tube into a test tube rack, ensure you have the bung and delivery

-add 5 mL of acid to the boiling tube and quickly insert the bung and delivery tube into the mouth of the boiling tube

-holding the other boiling tube with your tongs, capture the gas produced.

-when you think the tube is full your lab partner should light a wooden splint.

-carefully remove the boiling tube from under the delivery tube, taking care to keep it facing upright.

-insert the burning splint into the mouth of the test tube.

Conclusion

As soon we connected the lime water and the metal carbonate and acid with the delivery tube it reacted at that time. The lime water change its colour and its kinda like cloudy then back to it original colour.

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The Acid Rain experiment

 What is Acid Rain?

-Acid Rain is the Precipitation that has a ph of less than that of natural rainwater which is about 5.6 due to dissolved carbon dioxide.

Aim of the Experiment : To observe effects of Acid Rain

Experiment: Petal, calcium Carbonate, Apple,Universal indicator, Bromothymol Blue.

Method: In a petri dish place items around edge. Wet dry ingredients with drop of water. In the middle put a weigh boat. Add Spatula and Sodium sulfate to weight boot. Add 5 drops of sulfuric Acid. Quickly Close.

Hypothesis: I think it will dissolve and it will make rain

Observation: When the spatula and Sodium sulfate was add to the petri dish there was a change in colour starting with the flower turn in to light pink. The calcium Carbonate clumped together. The Apple lost its colour. Universal Indicator colour turn to red. Then the Bromothymol Blue Colour turn to orange.

Atomic Science : periodic Table

 What does the periodic table table show us?

- the periodic table is known for the periodic table of elements, it is a display of the chemical elements which are the lay out by atomic number, electron configuration.Periodic table show us the periodic trends.

What is Alkali metals?

- the alkali metals consist of the chemical elements lithium, sodium, potassium, rubidium, caesium, and francium. Together with hydrogen they constitute group 1, which lies in the s-block of the periodic table. 

Experiment

In science we did an experiment of what could happen if we put alkali metals in water. Would it explode?. . . . .

So we used cold water and alkali metals.

What happen when we put the alkali metals in the water?

- its exploded and the heavier and bigger the alkali metals will react more violently with water