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lord [1]
2 years ago
6

Plz help due tomorrow what are the answers 1-5 will be marked brainliest

Chemistry
1 answer:
lina2011 [118]2 years ago
6 0

1.)D

2.)B

3.)A

4.)C

5.)C

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Write the lewis structure for mgi2. draw the lewis dot structure for mgi2. include all lone pairs of electrons.
viktelen [127]
Lewis Structure is drawn in following steps,

1) Calculate Number of Valence Electrons:
    
# of Valence electrons in Mg  =  2
# of Valence electrons in I      =  7
# of Valence electrons in I      =  7
                                               ---------
Total Valence electrons          =  16

2) Draw Mg as a central atom surround it by two atoms of Iodine.

3) Connect each Iodine atom to Mg, and subtract two electrons per bond. In this case we will subtract 4 electrons from total valence electrons. i.e.

Total Valence electrons           16
- Four electrons                    -   4
                                              ----------
                                                  12

4) Now start adding the remaining 12 electrons on more electronegative atoms i.e. Iodine.

The final lewis structure formed is as follow, 

4 0
3 years ago
Corinne uses a model rocket in her physical science class. The rocket begins its trip traveling vertically at 22 m s . It reache
dezoksy [38]

The answer is D have a good day

8 0
2 years ago
Read 2 more answers
Select all that apply tomitosis (Choose 4)
mamaluj [8]
Select all that apply
8 0
2 years ago
When the equation Fe + Cl2 ----> FeCl3 is correctly balanced the coefficient for Cl2 is
Marysya12 [62]

The correct answer is D. Using the law of conservation of mass the number of atoms on each side of the equation should be equal. Through introspection, we find that there are 2Cl atoms on reactant side as opposed 3Cl atoms on product side. If we add a coefficient of 3 on Cl_2 we get

Fe + 3Cl_2 ==> FeCl_3.

Now there are 6Cl atoms on reactant side and 2 on product side, hence we add a coefficient of 2 on both FeCl_3 and Fe. The balanced chemical equation is,

2Fe + 3Cl_2 ==> 2FeCl_3

4 0
3 years ago
Sodium is reacted with chlorine to produce sodium chloride. How much sodium chloride is produced when 45 grams of sodium reacted
77julia77 [94]

Answer:

114.7g

Explanation:

Given parameter:

Mass of Na = 45g

Unknown:

Mass of produced NaCl  = ?

Solution:

The reaction equation is shown below;

          2Na + Cl₂   →   2NaCl

Now, we solve from the known to the unknown. The known here is the mass of Na and it is sufficient to solve the problem;

         Number of moles  = \frac{mass}{molar mass}

 Molar mass of Na = 23g/mol

            Number of moles  = \frac{45}{23}   = 1.96moles

               2 mole of Na produced  2 moles of NaCl

              1.96 moles of Na will produce 1.96 moles of NaCl

Mass of NaCl  = number of moles x molar mass

                         = 1.96 x [23 + 35.5]

                         = 114.7g

5 0
3 years ago
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