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Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Thursday, May 27, 2021

Metal Reactions

 1. Metal + Acid = Metal Salt + Hydrogen

Magnesium + Sulfuric Acid = Magnesium Sulfate + Hydrogen

Method: 1. Light bunsen burner. 2. Add your sample of metal to your test tube. Add 2 ml of acid. 3. Carefully invert the boiling tube above the test tube containing the metal and acid. 4. Hold the tubes together for few minutes, allowing time for the inverted boiling tube to fill with gas. 5. When you think the tube is full, your lab partner should light a wooden splint. 6. Carefully, but quickly, tilt the boiling tube full of gas upwards and insert the burning splint into the boiling tube. 

2. Metal + Oxygen = Metal Oxide

Magnesium + Oxygen = Magniseum Oxide

Method: 1. Light bunsen burner. 2. Hold your piece of magnesium in the scissor tongs. Ensure you are holding onto the very tip of magnesium. 3. Place the other end of magnesium into the Bunsen flame (at the top of the blue flame). 4. When the magnesium begins to burn, do not look directly at it, as the light emitted can permanently damage your eyes.

3. Metal Oxid +  Hydrogen Peroxide = Metal Hydroxide + Oxygen

Manganese Dioxide + Hydrogen Peroxide = Manganses Hyrdoxide + Oxygen

Method: 1. Light your bunsen burner. 2. Add the manganese dioxide to the boiling tube and place it in your test tube rack. 3. Add 2ml of Hydrogen peroxide. 4. Light a splint and let it burn for a while. 5. Blow the splint out and insert the glowing embers into the mouth of the boiling tube. It should light back up

4. Metal Carbonate + Acid = Metal salt + Water + Carbonate

Method: 1. Add a pea-sized amount of the melt carbonate into one of the boiling tubes. 2. Place this boiling into a test tube rack. Ensure you have the bung and delivery tube ready. 3. Add 5ml of acid into the boiling tube and quickly insert the bung and delivery and tube into the mouth of the boiling tube. 4. With the other boiling tube hold it with tongs, capture the gas produced with the lime water.

Friday, April 9, 2021

Acid Rain Experiment

Acid Rain Experiment

What is Acid rain? Acid rain is where the air is polluted with fossil fuels and the fuels get absorbed by the clouds and it rain, and it is bad for the environment and can kill plants and animals over a long exposure.

Aim of this experiment. To observe the effects of acid rain.

hypothesis. Petal calcium carbonate, apple, universal indicator, bromothymol blue

Method. In a petri dish place items around the edge. Wet dry ingredients with a drop of water. In the middle put a weigh boat. Add a spatial of sodium sulfate to weigh boat and 5 drops of sulfuric acid. Quickly close the lid.

What happened after we put the sodium sulfate and sulfuric acid in the weigh boat the petal started to lose colour, the universal indicator change colour to very light pink, the bromothymol blue change colour to an orangey-yellow 

Before sodium sulfate

After sodium sulfate


Monday, March 15, 2021

Atomic Science: Periodic Table

Periodic Table Of The Elements Turns 150 | WUWM

What does the periodic table show us? The periodic table shows u the elements ad their atomic number. and the elements are arranged by their atomic number and electron layout.

What is the mass number? The mass number is the total number of proton and neutrons in an atomic nucleus.

What is an atom? Atoms are the simplest form of matter. Atoms make up everything in the world.

What is an element? An element is a substance that can not be broken down into any other substance. Every element is made up of its own different type of atom. Everything in this world is made up of atoms. The periodic table lists all the elements that we know and groups together those with similar properties.

What are alkali metals? Alkali metals are the 6 chemical elements of group 1 on the periodic table, chemical elements metals are sodium, potassium, lithium, francium, rubidium and caesium.

What happened in the experiment? Miss Abernethy put lithium in the water, when she did that the water changed the colour of the water. then she used a little bit of sodium and nothing really happened, then Miss put a bigger piece of sodium and it caught on fire and it made a little explosion.