3 years ago

Explain how scientific theories differ from scientific laws

Chemistry

1 answer:

oee [108]3 years ago

4 0

Theories can change, however the scientific law can not.

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What is the number of grams in 3.2 moles of CuSO4×5H2O

son4ous [18]

Hey there!:

Molar mass CuSO4*5H2O = 249.68 g/mol

Therefore:

1 mole CuSO4*5H2O ---------------- 249.68 g

3.2 moles --------------------------------- ?? ( mass of CuSO4*5H2O )

mass CuSO4*5H2O = 249.68 * 3.2

mass CuSO4*5H2O = 798.97 g

Hope that helps!

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3 years ago

Which of these would you expect to be solute in the non polar solvent CS2, carbon disulfide?

fgiga [73]

C. Carbon tetra–bromide is a non–polar compound, for the four Bromines balance out the dipole moment from the tetrahedral bonds they form on Carbon.

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In the lab, frank has two solutions that contain alcohol and is mixing them with each other. he uses 100 milliliters less of sol

VladimirAG [237]

Solution B (17% alcohol) = x ml
Solution A (13% alcohol) = (x-100) ml

0.17x ml alcohol in Solution B
0.13(x-100) ml alcohol in Solution A

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0.17x+0.13x-13=347
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Match the process in electricity generation to the type of energy conversion that occurs (processes are not in correct order)

MAXImum [283]

Answer

The matching is numbered and represented in red arrowsi n the diagram below:

Explanation

In a steam turbine electricity generation, the mechanical energy in form of pressure present in steam is extracted and converted into kinetic energy by allowing the steam to flow through the stationary blades. This kinetic energy is transmitted to the moving blades connected to the alternator of a steam turbine generator.

The matching of the process is shown below:

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All atoms of the same element have the same:

Korvikt [17]

They have the same number of protons

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