Carbon is the reference taken to assign the atomic mass unit
- One twelfth of the mass of unbound carbon-12 is taken as 1amu
- The unit for the atomic mass constant is Dalton (Da)
- This unit is standard when doing calculations in chemistry and physics
- 1amu = 1.6605x10⁻¹⁹g
- This was also derived from the law of definite proportions
- This standard has been set by the International Union of Pure and Applied Chemistry (IUPAC)
- The IUPAC is responsible for assigning various standards such as the nomenclature of various compounds, and updating the periodic table of elements.
- According to the IUPAC carbon is the reference taken to assign the atomic mass unit
Learn more about atomic mass units here:
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A bug walking on the surface of a puddle is depending on HIGH SURFACE TENSION BECAUSE OF THE ATTRACTION BETWEEN WATER MOLECULES.
Water has a lot of interesting properties due to the hydrogen bonds that hold its molecules together. One of the interesting property of water is surface tension.
Surface tension refers to the property of the water surface, which enables it to resist an external force. The cohesive forces among the water molecules is responsible for the surface tension. The surface tension of water allow small animals such as insects to walk on water.
Yo sup??
CaCO3 + 2 HCl ---------> CaCl2 + H2O + CO2
This is the balanced chemical equation
Hope this helps
Answer:
Dark Matter
Explanation:
90 percent of the mass in the universe is dark matter
