Answer:
Calcium + Oxygen = Calcium Oxide
Explanation:
Calcium basics: -positively charged ion (cation) -99% in bones and teeth, 1% in extracellular fluid. -important for bone and tooth formation, normal cell function, and neural transmission.
Oxygen, a colourless, odourless, tasteless gas essential to living organisms. It will support life. It is noncombustible, but will actively support the burning of combustible
Symbol: O
Atomic mass: 15.999 u
Atomic number: 8
Electron configuration: [He] 2s²2p⁴
Electrons per shell: 2, 6
Melting point: -218.8 °C
Calcium reacts with oxygen to form calcium oxide. The chemical equation for this reaction is Ca + O2 → CaO.
Answer:
The rubbing of certain materials against one another can transfer negative charges, or electrons. ... Remember, objects with the same charge repel each other. Because they have the same charge, your hair will stand on end. Your hairs are simply trying to get as far away from each other as possible!
18.99g/mol F = 1 mole of F
1 mole is equal to Avogadro's number which is:
![6.02214076 × {10}^{23}](https://tex.z-dn.net/?f=6.02214076%20%C3%97%20%20%7B10%7D%5E%7B23%7D%20)
Therefore, one mole of fluorine has 6.02214076 × 10^23 fluorine atoms.
Answer:
Because it has a darker pigment?
Explanation:
Answer:
B. An animal's weight
Explanation:
An animal's weight is the factor that does not influence population size in an ecosystem because this factor does not cause an increase or decrease the population of animals in an ecosystem. The birth and death rate of animals and number of animals in habitats are the factors that tells us about the increase and decrease in the population of organisms in an ecosystem but weight of organism can't affect the population.