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What else can I help you with?
Name the gas that naturally occurs in the air and screens out harmful rays from the sun?
Ozone (O3) forms from oxygen (O2) in the upper atmosphere and screens out most of the ultraviolet radiation from the Sun.
What life forms were in the proterozoic eon?
There were no life forms as we know them during the Proterozoic period. With oxygen just then being accumulated in the earth's atmosphere, it brought the first advanced single-celled eukaryotes and multi-cellular life forms.
What is rust and how does it form?
Rust forms when metals containing iron mix with the oxygen in the air or the water and create a compound named iron oxide. This compoumd has water molecules, so we call it a hydrated compound. Chemically and very simply speaking, iron atoms lose a few electrons to oxygen atoms. This process, where electrons are lost from atoms, is the oxidation process. When oxidation occurs it produces a chemical reaction that creates iron oxide
How was oxygen formed?
The first oxygen on earth was produced by a blue green bacteria called cyanobacteria. They had no used for it, it was just waste in their process of making glucose as food using sunlight (the glucose was then fermented when the energy was needed). The waste oxygen poisoned many life forms. Eventually some life forms evolved that could use oxygen and also protected themselves from its poisonous character.
Place the following events into the proper order?
Fertilization takes place, Zygote divides, Implantation occurs, Gastrulation begins, and Heart forms.
Does reduction of oxygen that forms water occur in photosynthesis?
no, it's during respiration
What type of reaction occurs when iron mixes with oxygen?
it forms iron oxide, and it can/should form rust
What product forms when O2 is reduced?
During photosynthesis and cellular respiration, oxygen is converted to water.
Generation of proton gradients across membranes occurs during what?
Generation of proton gradients across membranes occurs during cellular respiration in the electron transport chain. This process involves the movement of electrons through a series of protein complexes, which pump protons across the inner mitochondrial membrane, creating a proton gradient that is used to generate ATP through ATP synthase.
What is the reduction of oxygen which forms water?
The reduction of oxygen to form water involves the gain of electrons by oxygen atoms. Each oxygen atom accepts four electrons and combines with two hydrogen atoms to form water molecules. This reduction reaction releases energy and is a key step in cellular respiration.
What gas you needed to make iron rust?
Oxygen gas is needed for iron to rust. When iron is exposed to oxygen and moisture in the air, a chemical reaction occurs that forms iron oxide, which is known as rust.
What does sulphur plus oxygen?
When sulfur reacts with oxygen, it forms sulfur dioxide (SO2). This reaction is exothermic and typically occurs with the release of heat and light.
What is the chemical reaction that occurs when aluminium reacts with oxygen to form aluminium oxide?
When aluminum reacts with oxygen, a chemical reaction occurs that forms aluminum oxide. This reaction is represented by the equation: 4Al 3O2 - 2Al2O3.
What forms as an energy source when respiration occurs in the presence of oxygen?
The energy source formed during respiration in the presence of oxygen is ATP (adenosine triphosphate). ATP is created through the process of cellular respiration, where glucose is broken down in the presence of oxygen to produce energy in the form of ATP molecules.
Which stage of cellular respiration is water produced?
water is made during the electron transport chain (etc) phase.
What kind of change occurs when a compond is separated into its components?
A chemical change occurs because compound is two elements put together so when they are separated it forms a new substance.
What causes denitrification?
Denitrification is caused by certain bacteria in the soil that use nitrate as an electron acceptor in anaerobic conditions, converting it into gaseous forms of nitrogen, such as nitrous oxide and nitrogen gas. This process occurs in environments where oxygen is limited, promoting the reduction of nitrate to nitrogen gas.
