3 years ago

Does the anion in a salt affect the color observed in a flame test?

1 answer:

8 0

When you are doing a flame test you are using a solution of positive metal cations and negative metal anions. The reason a color is observed is that during the flame test the positive ion can reacquire an electron, becoming a neutral element again. The electron that is gained is in a higher energy level and when it drops to a lower energy level a photon of light is emittted. The wavelength of the light emitted determines the color.

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Explain why the two argon atoms are attracted<br> to each other.

Inessa05 [86]

Each are non-metals, which form a covalent bond. They also have high electron rapport.
- nonmetal and nonmetal equals covalent bond.

5 0

3 years ago

The pressure exerted by a gas in a container depends on what?

lyudmila [28]

Answer:

From gas laws (pressure law and Boyles law), the pressure exerted by a gas depends on Temperature of the gas and volume of the container.

Explanation:

${ \boxed{ \rm{P \: \alpha \: \frac{T}{V} }}}$

• P → Pressure exerted by the gas.

• T → Temperature of the gas.

• V → Volume of the container.

• from the expression, pressure exerted by the gas is directly proportional to temperature of the gas and inversely proportional to the volume of the container.