What is the formula for stomach acid?
Stomach acid is primarily composed of hydrochloric acid with a chemical formula (definition: a set of chemical symbols showing the elements in a compound) of HCl.
What type of chemical reaction is digestion of food in stomach?
decomposition reaction
What are examples of different types of reactions in photosynthesis?
The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions). Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH.
Why is photosynthesis an example of chemical reaction?
Photosynthesis is an example of a chemical reaction because it is a process in which carbon dioxide and water are combined to form glucose and oxygen. It is an endothermic reaction because it requires solar energy.
Does sunlight contain chemicals or is it a chemical reaction?
Photosynthesis requires energy, making it an endothermic reaction. Light, generally sunlight, is the source of this energy. The process converts the sun’s electromagnetic energy into chemical energy, which is then stored in chemical bonds in the plant. Sunlight is the primary source of energy on the surface of Earth.
What is the chemical symbol for sunlight?
symbol hν
What does sunlight and chemicals create?
For example, carbon dioxide and water do not ordinarily react, but in the process of photosynthesis, plants take these two chemicals and, using sunlight, produce oxygen and sugar.
What type of energy is used from the sun?
solar energy
Does the sun affect chemicals?
Aside from its heat and visible light, the Sun also shines in ultraviolet (UV) light. Ozone in Earth’s upper atmosphere blocks much of the UV. However, pollution can weaken the ozone shield. The burning of these fuels causes global warming by emitting carbon dioxide into the atmosphere, where it traps the Sun’s heat.
What chemicals are on the sun?
| Chemical composition of the Sun | |
|---|---|
| Hydrogen | 73% |
| Helium | 25% |
| Oxygen | 0.80% |
| Carbon | 0.36% |