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What type of change occurs when a plant uses energy from sunlight to create oxygen and glucose from carbon dioxide and water?
A chemical change has occured because new compounds have been produced
How can scientists determine if oxygen existed in earth Archean atmosphere by?
Scientists can determine if oxygen existed in the Earth's Archean atmosphere by studying ancient rocks and minerals for chemical signatures that are indicative of oxygen presence. They look for isotopic ratios of elements like sulfur and carbon to infer the levels of oxygen in the atmosphere during that time. Additionally, biomarkers and fossils from that period can provide indirect evidence of oxygen-producing organisms.
Can oxygen and grease explode?
Yes, oxygen and grease can react and cause a fire under certain conditions, but typically they would not explode as in a chemical explosion. The combination of oxygen, heat, and flammable materials like grease can lead to combustion or fire hazards.
What if oxygen never existed?
If oxygen had never existed that universe would be unrecognizably different from the universe we know, because the creation of oxygen in stars is a consequence of the fundamental laws of physics. For oxygen never to have existed, the laws of physics would have to be very, very different from what they are. Taking a narrower view, the world would be a totally different place since practically all now existing animal species - including humans - rely on oxygen for survival.
What is the chemical equivalent of oxygen?
O2 the the chemical symbol for oxygen
Did organisms that require oxygen exist before photosynthetic organisms?
It would be impossible for oxygen requiring organisms to exist before photosynthetic organisms because there was not oxygen in the atmosphere for these organisms to breathe. Photosynthetic organisms take carbon dioxide and water in and create oxygen as waste. Before these photosynthetic organisms existed there was not enough or any oxygen in the atmosphere for organisms requiring oxygen to survive.
What was the composition of the early ocean?
The primitive ocean was composed of dissolved iron. This could have given it a reddish colour. The iron existed from volcanic activity. After the evolution of photosynthesis, the iron precipitated out and oxygen has composed the qualities it has today.
What is the chemical formula for oxygen and hydrogen?
Chemical Name = Oxygen Chemical Symbol = O There is no chemical formula for elements.
Is oxygen a form of water?
No. Oxygen is a chemical element. Water is a chemical compound of hydrogen and oxygen.
What is chemical symbol of oxygen?
O is the element oxygen. The Oxygen that we breathe is O2. The Oxygen in the ozone layer is O3.
What is oxygen mechanical or chemical?
chemical
Is oxygen mechanical or chemical?
chemical
