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3 years ago

What is an example of a neutral ion.

Chemistry

1 answer:

VARVARA [1.3K]3 years ago

4 0

A neural sodium ion.

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Evaluate each scenario to determine whether it represents a chemical reaction.

vova2212 [387]

Explanation:

A chemical reaction is one in which a chemical change occurs.

During a chemical change;

The process is irreversible
New kinds of matter produced
There is a change in mass

Based on these premise;

Baking cake batter is a chemical reaction because you cannot reverse the process

Shredding a paper is not a chemical reaction because no new kind of matter is produced.

Twisting of a metal wire is not a chemical reaction

Yellowing of newspaper in sunlight is a chemical change. The process cannot be reversed

8 0

2 years ago

Read 2 more answers

State the period and group to which aluminum belongs to in the periodic table

FinnZ [79.3K]

Explanation:

aluminium belongs to group 13 and period 3

3 0

3 years ago

Given four particle models: which two models can be classified as elements?

Rainbow [258]

Where are the questions answer key

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3 years ago

HURRY GIVING BRAINLIEST......

Dmitry [639]

Answer:

I think Water because it keeps you dehydrated. You will still survive with out any food or any place to live but it's not air i know that for a fact because we need oxygen to live.

Explanation:

hope that helps:) you might can add some more words to it or change it up if you want to.

4 0

2 years ago

B) A company president would like to offer a 4.00 L cylinder containing 500 g of chlorine in the new catalog. The cylinders you

Yuri [45]

Answer:

43.1atm is the pressure using gas law and 27.2atm using Van der Waals Law.

Explanation:

Ideal gas law is:

PV = nRT

Where P is pressure in atm

V is volume = 4.00L

n are moles of the gas (For chlorine Molar Mass: 70.90g/mol):

500g * (1mol / 70.90g) = 7.052 moles

R is gas constant = 0.082atmL/molK

T is absolute temperature = 25°C + 273 = 298K

To solve the pressure, P:

P = nRT/V

P = 7.052mol*0.082atmL/molK*298K / 4.00L

P = 43.1atm is the pressure using gas law.

Van der Waals equation is:

$P + a(\frac{n}{V})^2 * (V-nb) = nRT$

Where a is 6.58L²atm*mol⁻²

b = 0.056Lmol⁻²

Solving for pressure:

$P + a(\frac{n}{V})^2 = \frac{nRT}{(V-nb)}$

$P = \frac{nRT}{(V-nb)}-a(\frac{n}{V})^2$

$P = \frac{7.052mol*0.082atmL/molK*298K}{(4.00L-7.052mol*0.056L*mol)}-6.58L^2mol^{-2}(\frac{7.052mol}{4.00L})^2$

P = 172.323 / 3.6051 - 20.4866

P = 27.2atm using Van der Waals Law

8 0

2 years ago