3 years ago

Which measurement describes the pressure of a gas?

Chemistry

1 answer:

pychu [463]3 years ago

3 0

Answer:

725 mmHg

Explanation:

mmHg is a sort of unit to determine pressure.

g/L, is a unit for density

2.5L is a value for volume

315K is a value for Asbolute T° (Kelvin grade)

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The product of alpha decay of the Nobelium isotope 259No is

Svet_ta [14]

Answer:

Nobelium is made by the bombardment of curium (Cm) with carbon nuclei. Its most stable isotope, 259No, has a half-life of 58 minutes and decays to Fermium (255Fm) through alpha decay or to Mendelevium (259Md) through electron capture.

Explanation:

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3 years ago

Write the symbol for every chemical element that has atomic number greater than 55 and less than 140.8 u

patriot [66]

Answer on the picture

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3 years ago

Some chemical bonds are considered molecules while others are considered compounds.

taurus [48]

Molecule is the general term used to describe any atoms that are connected by chemical bonds. Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds.

One example of a molecule is $Cl_2$ (chlorine).