3 years ago

How do systems impact creation?

Chemistry

1 answer:

dmitriy555 [2]3 years ago

4 0

Answer:

they can change how we think,move and even how we feel about things!

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soldier1979 [14.2K]

Molecular mass of H2O is: 16+2*1=18
so moles of 40g of H2O is: 40/18=2.22

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3 years ago

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The red line of the hydrogen emission spectrum has a wavelength of 656.1 nm. Calculate the energy of one photon

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The formula we can use here is the Plancks equation:

E = h c / ʎ

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Therefore E is:

E = (6.626 × 10-34 m2 kg / s) * (3 x 10^8 m/s) / 656.1 x 10^-9 m

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3 years ago

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A patients blood is tested for growth hormone which has a molecular mass of 848.952g/mol. The test results show a normal concent

rusak2 [61]

Answer:

$\boxed{4.7\times 10^{-9}}$

Explanation:

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MM = 848.952 g/mol

c = 4.0 x 10⁻⁶ g/L

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(b) Moles of growth hormone

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yaroslaw [1]

Answer:

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