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What substance is 7.5 times heavier then water when equal volumes are compared?
The substance that is 7.5 times heavier than water when equal volumes are compared is mercury. Mercury has a density about 13.6 times greater than water, making it significantly heavier for the same volume.
What has a heavier atomic weight gold or oxygen?
Gold has a heavier atomic weight than oxygen. Gold's atomic weight is approximately 197, while oxygen's atomic weight is around 16.
What is a copper in medieval times?
In medieval times, a copper referred to a coin made of copper or a person who worked with copper as a metal. The coin was often a low denomination and had minimal value compared to other currencies. Copper workers were skilled craftsmen who made various items such as pots, pans, and jewelry using copper.
Why is magnesium oxide heavier than magnesium?
Magnesium oxide is heavier than magnesium because it contains an additional oxygen atom per molecule. This extra oxygen atom contributes to the overall molecular weight of magnesium oxide, making it heavier than pure magnesium.
Does the lithium get heavier after the reaction with oxygen?
When lithium reacts with oxygen, the mass of the lithium is unchanged. However, the mass of lithium oxide (Li2O) created is about 2.1 times as great as the starting mass of lithium metal (110% increase), due to the addition of oxygen. If the lithium reacts with nitrogen, the mass of lithium is similarly unchanged. The reaction produces lithium nitride (Li3N), with a mass about 1.7 times as great as the starting mass of lithium metal (67% increase), due to the addition of nitrogen.
