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german
3 years ago
13

which of the following does not represent a molecular compound? A)CS2 B)Bal2 C)N2O4 D)PCI3

Chemistry
2 answers:
daser333 [38]3 years ago
3 0
The answer will be B. Bal2
Doss [256]3 years ago
3 0
Bal2 is the awnser yup its the awnser
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Based on your knowledge of oxygen ion and that Iron can exist as a +2 or a +3 ion. In the formula FeO, what is the charge of the
DerKrebs [107]

Answer:

+2

Explanation:

Oxygen ions always have the charge of -2. Since Fe is in the transition metal stage, it doesn't have a specific set of ions unless specifically shown. In the equation FeO, we would have to have a +2 charge when equalling the two atoms together. So when combines the charges would look like:

Fe_{+2} + O_{-2} = FeO

I am happy to help with any other questions you might have, and I will continue to work to providing the best answers for you :)

6 0
3 years ago
How many molecules of H₂S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO2.
Serhud [2]

Answer:

9.89 x 10²³ molecules H₂S

Explanation:

To find the molecules of H₂S, you need to (1) convert grams S to moles S (via the atomic mass of sulfur), then (2) convert moles S to moles H₂S (via the mole-to-mole ratio from equation coefficients), and then (3) convert moles H₂S to molecules H₂S (via Avogadro's Number). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the sig figs of the given value.

Atomic Mass (S): 32.065 g/mol

2 H₂S(s) + SO₂(g) -----> 3 S(s) + 2 H₂O(l)

Avogadro's Number:

6.022 x 10²³ molecules = 1 mole

79.0 g S           1 mole            2 moles H₂S          6.022 x 10²³ molecules
---------------  x  ---------------  x  ----------------------  x  -------------------------------------  =
                        32.065 g            3 moles S                          1 mole

=  9.89 x 10²³ molecules H₂S

4 0
1 year ago
Natasha is looking for a material to make tires for a new jogging stroller she designed. which would be best suited to her produ
Vedmedyk [2.9K]

Answer:

1B a silver Chain

2B the thread that connects the pearls is like an ionic bond

3B Polystyrene

5 A Synthetic polymers are lightweight

6 A it's lack of mass production

Explanation:

Hope this helps :D

6 0
3 years ago
Read 2 more answers
1.
Alex_Xolod [135]

i think that the answer is D

3 0
2 years ago
The potential energy diagram for a reaction starts at 380 kJ and ends at 100 kJ. What type of reaction does the diagram best rep
ohaa [14]

Answer: A.  Exothermic reaction

Explanation: Enthalpy change for a reaction is sum of enthalpy of formation of products minus sum of enthalpy of formation of reactants.

When the energy level of reactants is above as compared to the products, the reaction is exothermic and when its opposite then reaction is endothermic.

From given information, the potential energy diagram starts at 380 kJ means the energy level of reactants is 380 kJ. It ends at 100 kJ means the energy of products is 100 kJ.

Enthalpy of reaction = 100 kJ - 380 kJ

Enthalpy of reaction = -280 kJ

Negative sign of enthalpy change indicates an Exothermic reaction.

5 0
3 years ago
Read 2 more answers
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