Ecosystems: what are they and how do they work?
6 important questions on Ecosystems: what are they and how do they work?
Out of what does matter consist?
Two chemical forms: Elements and compounds.
Out of what does an atom exist?
Each atom exists out of three types of text-decorationsubatomic particles: neutrons, protons and electrons.
Each atom consists of an extremely small center called the text-decorationnucleus, which contains one or two neutrons and protons, and around which electrons circle. Because the electrical charges of the electrons and protons cancel eachother, text-decorationan atom as a whole has no electrical charge.
Out of what does a molecule exist?
Out of a combination of two or more atoms of the same or different elements held together by forces called text-decorationchemical bonds.
- Higher grades + faster learning
- Never study anything twice
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What is a chemical formula?
Chemists use this to show the number of each type of atom or ion in a compound.
This shorthand contains: H2O (water)
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the symbol of each element present (H&O)
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subscripts to show the number of atoms or ions of each element in compound's basic structural unit. (2)
How does matter come to life?
Through genes, chromosones, and cells.
How do you measure the usefulness of a form of matter?
Matter quality is a measure of how useful a form of matter is to humans as a resource, based on it's availability and concentration (amount).
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
