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Hoochie [10]
3 years ago
9

Which symbol in a chemical equation separates the reactants from the products?​

Chemistry
2 answers:
yKpoI14uk [10]3 years ago
6 0

Answer:

An arrow. ➡️

Explanation:

When reading the symbol is called yields.

max2010maxim [7]3 years ago
4 0

Answer:

arrow

Explanation:

ex. xy+xy>xy+xy

- Hope that helped! Let me know if you need a further explanation.

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Which of the following is NOT true about a C-14 atom?
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Answer:

option C. it contain 6 neutrons.

Explanation:

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The awnser is central canal the third one
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A lithium atom has three protons, three neutrons, and three electrons. what is the overall charge on this atom? a–3 b 0 c 1 d 3
fredd [130]

  Lithium atomic number = 3

  Li atom has 3 protons,3 electrons.Then it has no charge.

So the charge of Li atom here is zero.

<u>Option b: 0 is the right answer.</u>

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The following questions pertain to a system contains 122 g CO(g) in a 0.400 L container at -71.2 degrees C.
7nadin3 [17]

Answer:

a. P = 182 atm

Explanation:

Data Given:

amount of CO = 122g

Volume of CO = .400 L

Temperature of CO =  -71.2°C

Convert the temperature to Kelvin

T = °C + 273

T =  -71.2 + 273

T =  201.8 K

a. Calculate the pressure exerted by the CO(g) in this system using the ideal gas equation (P) = ?

Solution:

To calculate Pressure by using ideal gas formula

                  PV = nRT

Rearrange the equation for Pressure

                   P = nRT / V . . . . . . . . . (1)

where

P = pressure

V = Volume

T= Temperature

n = Number of moles

R = ideal gas constant = 0.08206 L.atm / mol. K

For this we have to know the mole of the gas and the following formula will be used

                 no. of moles = mass in grams / molar mass . . . . . . (2)

Molar mass of CO = 12 + 16 = 28 g/mol

Put values in equation 2

                no. of moles = 122 g / 28 g/mol

                no. of moles = 4.4 mol

Now put the value in formula (1) to calculate Pressure for CO

P = 4.4 x 201.8 K x 0.08206 (L.atm/mol. K) / 0.400 L

P = 182 atm

So the pressure will be 182 atm

__________

b. Data Given:

Actual pressure exerted by CO = 145 atm

expected pressure exerted by CO = 182 atm

why the actual pressure is less than what would be expected = ?

Explanation:

This is because of the deviation from ideal behavior of real gases.

The real gases approach to ideal behavior under very high temperature and very low pressure.

But CO deviate from ideal behavior to give expected value for pressure, because it behave at high pressure and low temperature.

This non-ideal behavior is due to two postulate of ideal behavior

  • gas molecules have negligible volume
  • Gas molecules have negligible inter-molecular interaction

but these postulates not obeyed under real condition. so we calculated the pressure using ideal condition values for gas and obtained the expected value for pressure but the actual pressure value was detected under normal condition.

8 0
3 years ago
Roxanne was asked by her teacher to explain why sodium ions (Na) and chlorine ions (CI) combine into sodium chloride (NaCl).
DedPeter [7]

Answer:

Roxanne said it was because chlorine is highly electronegative and sodium has a low ionization energy and that the ions Na and cr both have full electron shells.

3 0
3 years ago
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