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Who discovered that pencil lead conducts electricity?
The discovery that pencil lead (graphite) conducts electricity was made by the British scientist Michael Faraday in the early 19th century. Faraday observed that graphite showed conductivity when connected to a circuit, despite being a non-metallic material.
When dilute sulfuric acid reacts with aluminium?
When dilute sulfuric acid reacts with aluminum, hydrogen gas is produced and aluminum sulfate is formed. The reaction can be represented by the following equation: 2Al + 3H2SO4 -> Al2(SO4)3 + 3H2. The evolution of hydrogen gas can be observed as bubbles.
What would you see if reactive aluminum was dropped into sulfuric acid?
As aluminium is a reactive metal, it will oxidise in air to form a hard coating of aluminium oxide which surrounds the metal. To observe the reaction of sulphuric acid and aluminium, this coating must first be specially removed. Effervescence will be observed, and hydrogen gas will be produced. aluminium + sulphuric acid (reacts to form) aluminium sulphate + hydrogen gas
Why is electricity observed because of the presence or movement of electrons?
Electricity is observed due to the presence or movement of electrons because electrons carry a negative charge and when they flow through a conductor, they create an electric current. This flow of electrons is what we perceive as electricity.
The hydrogen-to-helium ratio is an important piece of evidence for the big bang What is the minimum hydrogen-to-helium ratio observed?
The minimum hydrogen-to-helium ratio observed is approximately 25% hydrogen to 75% helium. This ratio is consistent with predictions based on the conditions of the early universe during the Big Bang.
What observed when a mixture of oxygen and hydrogen is lit?
Don't try it because if you have 1 volume of oxygen to 2 volumes of hydrogen, it is explosive!
Why some heavier planets may have hydrogen?
Hydrogen is the most commonly observed element in the universe and is likely contained in every planet.
When was Hydrogen discovered and by Whom?
It was discovered by Henry Cavendish in 1766.
Who founder of hydrogen?
The hydrogen gas was discovered by Cavendish. he proposed the name Combustible gas which is now known as Hydrogen.
Who first observed static electricity?
The observation of static electricity dates back to ancient Greece, where Thales of Miletus (around 600 BC) recorded properties of static electricity by rubbing amber.
Who famously flew a key on a kite in a lightning storm?
Benjamin Franklin. He did this and observed electricity. He touched his finger to the key and felt a shock. This is where the basics of electricity were discovered.
Who discovererd electricity by using a kite?
Benjamin Franklin is often credited with the discovery of electricity using a kite experiment, where he flew a kite during a thunderstorm and observed the transfer of electricity from the atmosphere to the kite string.
