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
melomori [17]
3 years ago
7

If the oxidation number of nitrogen in a certain molecule changes from +3 to -2 during a reaction, is the nitrogen oxidized or r

educed? how many electrons are gained or lost by the nitrogen atom?
Chemistry
1 answer:
aliina [53]3 years ago
7 0
The nitrogen has been reduced or has undergone reduction and it has gained one electron
You might be interested in
do you agree or not that evidence is only used to back scientific laws and provide evidence why or why not!!!!!! thank you, will
suter [353]

Answer:

yes, because evidence from scientifically research studies, is important because it lets us make decisions based on what works with studies of science we can know if this is right or not  

Explanation:

Hope i helped~  

4 0
2 years ago
Erika is asked to create a model showing a negatively charged Carbon ion. Which model should she create?
OverLord2011 [107]
I am pretty sure u have pictures and this one should be the one that erika should make

8 0
2 years ago
What are blocks of time in the geological time scale called?
Katena32 [7]
B is the answer , i got you
7 0
3 years ago
Read 2 more answers
If 15 grams of Carbon dioxide is produced in a chemical reaction, how many grams of Carbon must be consumed in the reaction if w
Nata [24]

4.1g

Explanation:

Given parameters:

Mass of carbon dioxide = 15g

Mass of oxygen gas = 11g

Unknown:

Mass of carbon consumed = ?

Solution:

   Equation of the reaction:

                                              C +  O₂   →   CO₂

    To solve this problem from the balanced equation,  we have to use the amount of product formed and work to Carbon. This is because, we are sure of the amount of carbon dioxide formed but the amount of the given oxygen gas used is not precise.

  Number of moles of CO₂ = \frac{mass}{molar mass}

Molar mass of CO₂ = 12 + (16 x2) = 44g/mol

   Number of moles of CO₂ = \frac{15}{44} = 0.34mole

From the equation of the reaction;

              1 mole of CO₂  is produced from 1 mole of C

           0.34mole of CO₂  will produce 0.34mole of C

Mass of carbon reacting = number of moles x molar mass = 0.34 x 12 = 4.1g

Learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

4 0
3 years ago
What is the molarity of 200 mL of solution in which 2.0<br> molesof sodium bromide is dissolved?
vodomira [7]

Answer:

10 M

Explanation:

Molarity -

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity

V = volume of solution in liter ,

n = moles of solute ,

From the question,

V = 200mL

Since, 1L = 1000mL ,

1 mL = 0.001 L

Hence,

V = 200mL = 0.2 L

n = 2.0 mol

Hence, to calculate the molarity of the solution, the above formula can be used as -

M = n / V

M = 2.0 mol / 0.2 L = 10 M

8 0
3 years ago
Other questions:
  • Chem help please. i cant figure out this problem
    7·1 answer
  • Draw a mechanism for the reaction of the aldehyde with hydronium ion. In the first box, draw any necessary curved arrows. Show t
    11·1 answer
  • Please help I need help fast please
    8·1 answer
  • 1) Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins. It is also a component of cigarette
    6·1 answer
  • 2. Why is the lonic compound Nacl (table salt) able to dissolve in a glass of the molecular compound water (H20)? (3 points)
    9·1 answer
  • Which of the following is correctly abbreviated SI unit describing the mass of an object?
    13·2 answers
  • How can you tell if a chemical is an ionic bond?
    7·1 answer
  • Eron Grant
    10·1 answer
  • What is the molar mass of CH 4 ? (C = 12.01g / m * o * l, H = 1.008g / m * o * l)
    5·2 answers
  • What type of compound is composed of covalently bonded atoms and has a high melting point?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!