2 years ago

I have the smallest atomic number of all the

Chemistry

1 answer:

lakkis [162]2 years ago

7 0

Hydrogen is the element with the smallest atomic number. Please name be brainliest?!

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Example of nobel gas

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helium , krypton,xenon,radon, argon are noble gasses

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3 years ago

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Calculate the molar mass of Co2

olga nikolaevna [1]

Answer:

44.01 g/mol

Explanation:

Add each elements atomic mass. For oxygen you will do that twice because their is two oxygens.

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Hypochlorous acid decays in the presence of ultraviolet radiation. Assume that degradation occurs accord- ing to first-order kin

Dennis_Churaev [7]

Answer:

35.75 days

Explanation:

From the given information:

For first-order kinetics, the rate law can be expressed as:

$\mathsf{In \dfrac{C}{C_o} = -kt}$

Given that:

the rate degradation constant = 0.12 / day

current concentration C = 0.05 mg/L

initial concentration C₀ = 3.65 mg/L

$\mathsf{In( \dfrac{0.05}{3.65})= -(0.12) t}$

㏑(0.01369863014) = -(0.12) t

-4.29 = -(0.12)

t = -4.29/-0.12

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2 years ago

Was john dalton a good scientist? why?

Zina [86]

he is a good scientist because he postulated that chemical reactions resulted in the rearrangement of the reacting atoms

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