Calcium oxide is an ionic, chemical compound created by equal transfer of atoms. As described, calcium loses two electrons, giving it a +2 charge and an atom of oxygen picks up two electrons, giving it a –2 charge. This event is called ionic bonding where there’s a complete transfer of valence electrons between atoms. Usually, metals are the ones donating their valence electron (e.g. calcium) and it’s the non-metals who accepts the donated electrons (e.g. oxygen).
In 1832, as the Beagle was exploring the Bahia Blanca along the coast of Argentina, Darwin discovered the bones of fossil mammals at two localities. In a place where armadillosabounded, he was especially struck by what looked liked the outer shell of an extinct form of armadillo.
The answer is "stays the same".
Whether what kind of process the substance undergoes, the mass will stay the same. When a substance undergoes a phase change, the weight of the substance would either increases or decreases but the mass will definitely stay the same.
Answer:
The factors limiting the size of cells include: Surface area to volume ratio (surface area / volume) Nucleo-cytoplasmic ratio. Fragility of cell membrane.
Explanation:
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Answer:
4) Cytoplasm
Explanation:
The cytosol (cytoplasm) is the "soup" within which all the other cell structures reside and where most of the cellular metabolism occurs.
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