The correct answer to the question above is letter d. <span>The height of radish seedlings is measured. The statement is letter d involves measurement with the keyword height which uses any measuring instruments. It also do not use any senses. Quantitative observations are measurable.</span>
Answer:
1. Magnesium and oxygen atoms bond to form an ionic compound; this is evident because one forms a cation and the other an anion. When an ionic compound is formed, one atom "steals" an electron (or electrons) from another. In this case, an oxygen atom (which is pretty electronegative by the way) "steals" 2 electrons from a magnesium atom. The resulting oxygen anion and magnesium cation attract one another to form a bond (more specifically, an ionic one).
2. The oxygen atom needed two sodium atoms to bond because it needs two additional electrons to achieve a stable octet of electrons. 1 sodium atom provides 1 additional electron after it is "stolen" by oxygen, so 2 sodium atoms are needed in total to form the bond.
3. The magnesium atom needed two fluorine atoms to bond because it needs to lose two electrons to achieve a stable configuration/octet of electrons. 1 fluorine atom "steals" one electron, so 2 are needed in total.
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Answer:
Explanation: An experience I had outside of school related to biology is; I was at the park a long time ago, when i noticed something in the ground, it was a fossil of a bird and it was engraved inside of the concrete.
Answer:
6CO2 + 6H2O -> C6H12O6 + 6O2
Their atoms have free-floating electrons that easily pass kinetic energy throughout the metal.
Explanation:
The metallic structure of metals allows for delocalized electrons. This means these free electrons can no longer be associated with only one atom in the metallic element but rather the electrons can move freely within the lattice. These electrons can carry with them energy and transmit it within the metal. This is why metals are good conductors of heat and electricity. The more delocalized electrons the metal has (such as Aluminium) the better it is at conducting heat and electricity.
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