3 years ago

Please Help Me!!!!!!!!!!!!!!!!!

Chemistry

1 answer:

antoniya [11.8K]3 years ago

7 0

Answer: choose a.

1. Iodine monochloride

2. Bromine pentafluoride

3. Tricarbon disulfide

4. Tetranitrogen tetrasulfide

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Heating devices can be made by passing an electric current through a conductor of:

olchik [2.2K]

Answer:

High resistance

Low conductivity

Explanation:

The more resistance (aka less conductivity) there is, the more the energy is turned into heat than simply passing through the object.

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3 years ago

Moles /Number of Particles Con

Olin [163]

(2.03x10^22)/(6.02x10^23) = .033721 mol Li

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3 years ago

A gas under a pressure of 74 mmHg and at a temperature of 75°C occupies a 500.0-L container. How many moles of gas are in the co

Leona [35]

Answer : The number of moles of gas present in container are 1.697 mole.

Explanation :

Using ideal gas equation,

$PV=nRT$

where,

P = pressure of gas = 74 mmHg = 0.097 atm

conversion used : (1 atm = 760 mmHg)

V = volume of gas = 500.0 L

T = temperature of gas = $75^oC=75+273=348K$

n = number of moles of gas = ?

R = gas constant = 0.0821 L.atm/mole.K

Now put all the given values in the ideal gas equation, we get the number of moles of gas in the container.

$(0.097atm)\times (500.0L)=n\times (0.0821L.atm/mole.K)\times (348K)$

$n=1.697mole$

Therefore, the number of moles of gas present in container are 1.697 mole.

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3 years ago

Describe the separation technique that could be used to separate two colorless liquids with varying boiling points.

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Distillation; either simple or fractional macroscale depending on how far apart the boiling points are.

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4 years ago

Minerals with the silicon-oxygen structure shown in Figure 2-1 are classified into what group?

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B----------- oxide is the correct answer

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3 years ago