3 years ago

Compared to other solvents, water is quite unique. All of the following are unusual prop- erties of water EXCEPT

Chemistry

1 answer:

Gekata [30.6K]3 years ago

6 0

Is D colorless liquid

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Thomson discovered the what in his cathode ray experiment?

Leona [35]

He used a magnet to find that the negatively charged particles to be smaller then the atom.
He discovered electrons.

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3 years ago

Calculate number of moles of 4.4g of CO2 and 5.6L of NH3 . Pls help . Its urgent

kupik [55]

Moles of CO₂ = mass / molecular weight
Moles of CO₂ = 4.4 / (12 + 16 x 2)
Moles of CO₂ = 0.1 mol

Each mole of gas occupies 22.4 L at STP. Therefore,
Moles of NH₃ = 5.6 / 22.4
Moles of NH₃ = 0.25 mol

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3 years ago

A runner wants to run 11.7 km. Her running pace is 8.0 mi/hr. How many minutes must she run?

ArbitrLikvidat [17]

Answer:

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12.875 /60 m

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2 years ago

Is cold water more dense

Paraphin [41]

Cold water is more dense and will sink in room-temperature water. hope it helps :)

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3 years ago

How many mols of K+ ions in 1.75 mol of K2SO4

olganol [36]

Answer:

$3.5 mol K^+$

Explanation:

Hello there!

In this case, since the mole-mole rations consider the amount of the specific ion in the whole compound, we can evidence that the potassium sulfate has two potassium ions in the molecule; in other words, there is a 1:2 mole ratio of the former to the latter; in such a way, we can perform the following proportional factor:

$1.75molK_2SO_4*\frac{2molK^+}{1molK_2SO_4}$

So we cancel out moles of potassium sulfate to obtain:

$3.5 mol K^+$

Best regards!

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3 years ago