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3 years ago

A substance that forms a vapor is generally in what physical state at room temperature?liquid or solidsolidliquidgas

Chemistry

1 answer:

Evgesh-ka [11]3 years ago

6 0

The answer is liquid or solid.

That is a substance that forms a vapor is generally in liquid or solid physical state.

The substance that is in liquid or solid physical state, forms vapor.

When heated solid and liquid can be converted into vapor so the answer is solid or liquid is the physical state that forms vapors.

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What type of pollution is pictured here?

Svetlanka [38]

Answer:this air polluction here.

Explanation:

air and soil polluction

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2 years ago

Drag each characteristic to the correct category.

andrew11 [14]

Answer/Explanation

Characteristics of Life Present in Viruses:

has a defined boundary - viruses are made up simply of genetic material surrounded by a protein capsid and sometimes a lipid membrane

Characteristics of Life Absent in Viruses:

made up of one or more cells - one of the main arguments for why viruses are not living is that they are not cellular
uses energy - this is a tricky one. They don't use or produce their own energy. However, in order to reproduce they do hijack the host cells and steal energy from them in order to reproduce
exhibits growth and development - although viruses do reproduce, the individual viral particles do not exhibit growth or development
possess internal organisation - other than the fact they ahve genetic material, the inside of a virus does not contain internal organization like a cytosol, instead conssiting of the bare minimum amount of proteins to survive
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4 0

3 years ago

True or false. elements in the same period have the same number of valence electrons

saul85 [17]

False. elements in the same period have the same number of shells while elements in the same group have the same number of valence electrons.

4 0

3 years ago

Determine the average atomic mass of the following mixture of isotopes of Potassium:

dexar [7]

Answer

the first one (im pretty sure)

Explanation:

5 0

3 years ago

g Phosphorus -32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. The h

Setler79 [48]

Answer:

6.88 mg

Explanation:

Step 1: Calculate the mass of ³²P in 175 mg of Na₃³²PO₄

The mass ratio of Na₃³²PO₄ to ³²P is 148.91:31.97.

175 mg g Na₃³²PO₄ × 31.97 g ³²P/148.91 g Na₃³²PO₄ = 37.6 mg ³²P

Step 2: Calculate the rate constant for the decay of ³²P

The half-life (t1/2) is 14.3 days. We can calculate k using the following expression.

k = ln2/ t1/2 = ln2 / 14.3 d = 0.0485 d⁻¹

Step 3: Calculate the amount of P, given the initial amount (P₀) is 37.6 mg and the time elapsed (t) is 35.0 days

For first-order kinetics, we will use the following expression.

ln P = ln P₀ - k × t

ln P = ln 37.6 mg - 0.0485 d⁻¹ × 35.0 d

P = 6.88 mg

3 0

3 years ago