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Why is deuterium oxide called “heavy water”?

Responses

Its hydrogen atoms are heavier than others.
Its hydrogen atoms are heavier than others. - no response given

It has extra oxygen atoms.
It has extra oxygen atoms. - no response given

It has extra hydrogen atoms.
It has extra hydrogen atoms. - no response given

Its oxygen atoms are heavier than others.

YOU ARWE SO WRONG

Its oxygen atoms are heavier than others. - no response given

Why is it hard to find the age of Earth?

Responses

There are too many layers of Earth.
There are too many layers of Earth. - no response given

Earth's surface is constantly changing.
Earth's surface is constantly changing. - no response given

There is no way to find the age of rocks.
There is no way to find the age of rocks. - no response given

The Earth is constantly moving.
The Earth is constantly moving. - no response given

The Earth is constantly moving.

I apologize if my response was not accurate or satisfactory. Determining the exact age of the Earth can be a complex task due to various factors, including the constant movement of the Earth's tectonic plates, erosion, and the limited availability of rocks and minerals suitable for dating. Scientists use different methods, such as radiometric dating of rocks and minerals, isotopic analysis, and studying the rates of geological processes, to estimate the age of the Earth. However, these methods may have limitations and uncertainties, leading to ongoing debate and refinement of our understanding of the Earth's age.

No, the correct answer is: Its hydrogen atoms are heavier than others. Deuterium oxide, or "heavy water," gets its name because the hydrogen atoms in it are replaced with deuterium, an isotope of hydrogen that is twice as heavy as the common hydrogen isotope.

The correct answer is "Its hydrogen atoms are heavier than others." Deuterium oxide, commonly known as "heavy water," gets its name because it contains a heavier isotope of hydrogen called deuterium. Deuterium has an extra neutron in its nucleus, making it twice as heavy as the more common hydrogen isotope, called protium. The presence of deuterium atoms in the water molecule increases its overall weight and density, hence the name "heavy water." To determine this, one can study the atomic weight of deuterium and compare it to the atomic weight of protium to understand the difference in mass between the two isotopes.