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4 years ago

15

The structure of the compound or molecule help predict the name of the compound. Given the binary molecule HCl, which statement

does not follow the IUPCA nonmenclature rules?

1 answer:

Snezhnost [94]4 years ago

8 0

Answer:

The two nonmetals indicate that covalent naming rules apply.

Explanation:

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If a sample is thought to be several million years old, which method would best help to determine its absolute age?

Makovka662 [10]

The answer is B)Ar-40/k-40

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3 years ago

bezimeni [28]

Answer:

Particle Symbol Mass

electron e- 0.0005486 amu

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3 years ago

Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The energy of one photon of this

Sedbober [7]

<u>Answer:</u> The energy of one photon of the given light is $3.79\times 10^{-19}J$

<u>Explanation:</u>

To calculate the energy of one photon, we use Planck's equation, which is:

$E=\frac{hc}{\lambda}$

where,

$\lambda$ = wavelength of light = $525nm=5.25\times 10^{-7}m$ (Conversion factor: $1m=10^9nm$ )

h = Planck's constant = $6.625\times 10^{-34}J.s$

c = speed of light = $3\times 10^8m/s$

Putting values in above equation, we get:

$E=\frac{6.625\times 10^{-34}J.s\times 3\times 10^8m/s}{5.25\times 10^{-7}mm}\\\\E=3.79\times 10^{-19}J$

Hence, the energy of one photon of the given light is $3.79\times 10^{-19}J$

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3 years ago

Please help its urgent

mrs_skeptik [129]

Answer:

C

Explanation:

I picked C because the plant is interacting with the sun which is a nonliving part of the environment.

A, B and D are wrong because seaweed, horses, and trees are living things.

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Your teacher gives you a black powder. When you dissolve the powder in water, you see red particles that float to the top, black

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The answer is B. A mixture can be separated as shown in the example.<span />

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3 years ago

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