3 years ago

Name two unique properties of water

Chemistry

1 answer:

arsen [322]3 years ago

7 0

Water's high polarity
Water's attraction to other polar molecules
I hope this works!!

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Calculate the mass (in grams) of 250mL of ether at 25 oC. The density of

leonid [27]

Volume=250mL
Density=0.71g/ml

$\boxed{\sf Density=\dfrac{Mass}{Volume}}$

$\\ \sf{:}\implies Mass=Density(Volume)$

$\\ \sf{:}\implies Mass=0.71(250)$

$\\ \sf{:}\implies Mass=177.5g$

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2 years ago

How far below sea level is the peak of the ridge?

mario62 [17]

I think is 1 and a half km

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3 years ago

1. When this equation is balanced, Fe + 02 -.--> Fe203, what is the

Vilka [71]

Fe + O2 → Fe2O3

After balancing the eq.

4Fe + 3O2 → 2Fe2O3

Hope this will help u mate :)

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3 years ago

Which outcome is the main function of the light-dependent reactions of photosynthesis?

andrew-mc [135]

Answer:

oxygen, water and sugar are the out come of photosynthesis

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3 years ago

A closed container holds 2.0 moles of CO2 gas at STP. How many moles of oxygen can be placed in a container of the same size at

PilotLPTM [1.2K]

Answer: 2 moles

Explanation:

STP is Standard Temperature and Pressure. That means the pressure is 1.00 atm and the temperature is 273K. Since the oxygen is placed in the same container, we can use Ideal Gas Law to figure out what container the CO₂ used.

Ideal Gas Law: PV=nRT

P=1.00 atm

n=moles

R=0.08206 Latm/Kmol

T=273K

CO₂

$V=\frac{nRT}{P}$

$V=\frac{(2.0 mol)(0.08206Latm/Kmol)(273K)}{1.00atm}$

$V=44.8L$

Since we know that CO₂ has a 44.8 L container, we can use that to find the moles of oxygen.

$n=\frac{PV}{RT}$

$n=\frac{(1.00atm)(44.8L)}{(0.08206Latm/Kmol)(273K)}$

$n=1.99=2mol$

There are 2 mol of oxygen.

5 0

3 years ago