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natta225 [31]
3 years ago
6

WILL MARK BRAINLIEST WORTH 20 POINTS PLEASE HELP ASAP

Chemistry
1 answer:
s2008m [1.1K]3 years ago
3 0

Answer:

A

Explanation:

Hydrogen and chlorine need to be balanced. There is an equal amount of magnesium on each side

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Which of the following is not a magnetic material A cobalt B iron C nickel D plastic E steel
pentagon [3]

Answer:

<h2>D. plastic</h2>

\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}

6 0
3 years ago
Explain why the quantum number set (3,2,-3,+1/2) is not possible for an electron in a ground state atom
fredd [130]
L = an integer from 0 to n-1 
<span>mL = an integer from -L to +L </span>
<span>ms = + or - 1/2 </span>

<span>the format is (n, L, mL, ms) </span>

<span>so your </span>
<span>n = 3... this is OK </span>
<span>L = 2.. also OK.. if n=3, L can = 0, 1, or 2 </span>
<span>mL = -3 is NOT ok... if L=2.. mL can only be -2, -1, 0, +1, or +2 </span>
<span>ms = +1/2 and that is ok

Hope this helps!</span>
3 0
3 years ago
Read 2 more answers
Uppose you have two 1-L flasks, one containing a gas with a molar mass of 30 g and the other a gas with a molar mass of 60 g. Bo
kobusy [5.1K]

Answer:

The answer to your question is: Flask X

Explanation:

Data

                            Flask X              Flask B

Molar mass            30 g                    60 g

mass                       1.2g                     1.2 g

Pressure                  1 atm                   0.5 atm

Formula                  PV = nRT

                         In the formula, we can notice that the number of moles (n)

                         is directly proportional to the pressure.

Then, let's calculate the number of moles

               flask X                                flask Y

  30 g  ---------------  1 mol           60 g -------------- 1 mol

  1.2 g ----------------   x                 1.2 g -------------   x

   x = (1.2 x 1) / 30                        x = (1.2 x 1) / 60

   x = 0.04 mol                             x = 0.02 mol

From the results, we conclude that the flask with the gas of molar mass 30g is the flask with pressure of 1 atm, because the higher the number of moles, the higher the pressure.

3 0
3 years ago
For the reaction:
Zepler [3.9K]

Answer:

The equilibrium constant for CO now

= 0.212 M

For H₂O

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

Explanation:

The chemical equation for the reaction is:

CO(g) + H2O(g) ⇌ CO2(g) + H2(g)

The ICE Table for this reaction can be represented as follows:

                   CO(g)      +   H2O(g)   ⇌    CO2(g)   +     H2(g)

Initial            0.5                0.5                   -                      -

Change        -x                   -x                      + x                + x

Equilibrium   0.5 -x           0.5 - x

The equilibrium constantK_c = \dfrac{[x][x]}{[0.5-x][0.5-x]}

K_c = \dfrac{[x]^2}{[0.5-x]^2}

where; K_c = 1.845

1.845 = \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}^2

\sqrt{1.845}= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583 (0.5-x) = x

0.67915  - 1.3583x = x

0.67915  = x +  1.3583x

0.67915 = 2.3583x

x = 0.67915/2.3583

x = 0.2880

The equilibrium constant for CO now = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For H₂O = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

3 0
3 years ago
Compounds X and Y are both C6H13Cl compounds formed in the radical chlorination of 3-methylpentane. Both X and Y undergo base-pr
zubka84 [21]

Answer:

Y is a 3-chloro-3-methylpentane.

The structure is shown in the figure attached.

Explanation:

The radical chlorination of 3-methylpentane can lead to a tertiary substituted carbon (Y) and to a secondary one (X).

The E2 elimination mechanism, as shown in the figure, will happen with a simulyaneous attack from the base and elimination of the chlorine. This means that primary and secondary substracts undergo the E2 mechanism faster than tertiary substracts.

6 0
3 years ago
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