1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexandra [31]
3 years ago
8

What is the reducing agent in the following reaction? (PLEASE RESPOND FAST)

Chemistry
2 answers:
ahrayia [7]2 years ago
8 0

Answer:

A) Na

Explanation:

We analyze the change of electrons in the equation.

So:

S (0) --> S (-2)

The oxidizing agent is the one that gains electrons. Sulfur goes from 0 to -2 then it is gaining electrons.

Na (0) --> Na (+1)

The reducing agent is the one that loses electrons. Sodium goes from 0 to +1 which means that it loses electrons.

Therefore the reducing agent is Na.

stich3 [128]2 years ago
3 0

S is the reducing agent in this rxn

You might be interested in
There are ________ unpaired electrons in the Lewis symbol for a nitride ion.
Anna71 [15]

Answer:

There are no unpaired electrons.

Explanation:

There are  no unpaired electrons in the Lewis symbol for a nitride ion({ N }^{ 3- }).The nitride ion has a charge of -3. The negative charge on the Nitride ion indicates a gain in electrons . Nitrogen has 5 valence electrons that is the number of electrons that are in its outer shell .The total number of electrons that the nitride ion has is equal to 5+3 = 8 electrons . Electrons usually appear in pairs and obey the octet rule therefore the nitride ion has four electron pairs no unpaired electrons.

5 0
3 years ago
Does SiF4 have polar covalent bonds?
Kamila [148]

Answer:

SiF4 is not a polar covalent bond.

Explanation:

SiF4 is a nonpolar molecule because the fluorine's are arranged around the central silicon atom in a tetrahedral molecule with all of the regions of negative charge cancelling each other out.

8 0
3 years ago
Nitrogen and hydrogen combine to form ammonia in the Haber process. Calculate (in kJ) the standard enthalpy change ∆H° for the r
Kazeer [188]

Answer:

∆H° rxn = - 93 kJ

Explanation:

Recall that a change in standard in enthalpy, ∆H°, can be calculated from the inventory of the energies, H, of the bonds  broken minus bonds formed (H according to Hess Law.

We need to find in an appropiate reference table the bond energies for all the species in the reactions and then compute the result.

              N₂ (g)   +            3H₂ (g)   ⇒                          2NH₃ (g)

1 N≡N = 1(945 kJ/mol)     3 H-H = 3 (432 kJ/mol)       6 N-H = 6 ( 389 kJ/mol)

∆H° rxn = ∑  H bonds broken  - ∑ H bonds formed

∆H° rxn = [ 1(945 kJ)   + 3 (432 kJ) ] - [ 6 (389 k J]

∆H° rxn = 2,241 kJ -2334 kJ = -93 kJ

be careful when reading values from the reference table since you will find listed N-N bond energy (single bond), but we have instead a triple bond,  N≡N,  we have to use this one .

8 0
3 years ago
NaF + HCL=> NACL + HF
Jobisdone [24]

Answer:

NaF + HCl --> NaCl + HF

Explanation:

hope it helps you

4 0
2 years ago
Calculate the solubility (in g/L) of CaSO4(s) in 0.500 M Na2SO4(aq) at 25°C . The sp of CaSO4 is 4.93×10^−5 .
jeka94
When you calculate the first two numbers in 493×10
7 0
3 years ago
Other questions:
  • Hi!!! Please help with six science questions!!!!! 60 points and brainliest! 
    5·2 answers
  • You have arrived on a planet where S2, not O2, is the gas used as fuel in combustion reactions. When gaseous propane (C3H8) is b
    6·1 answer
  • Which processes are driven primarily by earths from the sun?
    5·1 answer
  • Dioxin is a by-product of various industrial chemical processes. It is suspected of causing cancer and birth defects in both hum
    15·2 answers
  • explain the following observation. When 3-methylbutan-2-ol is treated with HBr, a single alkyl bromide is isolated, resulting fr
    12·1 answer
  • Any one know the answer?
    13·1 answer
  • What is the mass of a bar of aluminum with length 5.3cm, width 0.32 cm and height 2.34cm? The density of aluminum is 2.70g/cm3.
    8·1 answer
  • As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the po
    15·1 answer
  • All the following process produces hematite except
    12·1 answer
  • Which of the following reactions will occur? question 10 options: ag hcl fe zn(no3)2 cu feso4 na hcl
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!