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
Bond [772]
3 years ago
8

I really need help solving this question

Chemistry
2 answers:
olchik [2.2K]3 years ago
4 0
The answer to this would be helium
hodyreva [135]3 years ago
3 0
He The reason behind this is because if you look on the periodic table you’ll see that he is the element name for neon neon is in the noble gas
You might be interested in
A time during a child's life span when he/she is most sensitive to environmental influences or stimulation than at other times d
aivan3 [116]
I think during toddler years, I used to be sooo paranoid during that time because I used to think about robbery, etc.
7 0
3 years ago
What is the oxidizing agent in the reaction 2MnO4-(aq) 10I-(aq) 16H (aq) ---> 2Mn2 (aq) 5I2(aq) 8H2O(l)
faltersainse [42]

Correct Question: what is the oxidizing agent in the reaction.

2MnO4–(aq) +10Cl–(aq) + 16H+(aq) --------> 5Cl2(g) + 2Mn2+(aq) +8H2O(l)

Answer: MnO4-is the oxidizing agent

Explanation:

In the reaction 2MnO4–(aq) +10Cl–(aq) + 16H+(aq) --------> 5Cl2(g) + 2Mn2+(aq) +8H2O(l)

Oxidizing agent oxidizes other molecules while the themselves get reduced.

oxidizing agents give away Oxygen to other compounds.

MnO4-is the oxidizing agent because

On the reactants side

Oxidation number of Mn in 2MnO4- is +7

Oxidation number of Cl- is -1

On the products side

Oxidation number of Mn is +2

While oxidation number of Cl is zero

Therefore the oxidizing agent is 2MnO4 because is oxidizes Chlorine from -1 to 0 while itself got reduced from oxidation state of +7 to +2

4 0
3 years ago
In an electroplating process, copper (ionic charge +2e, atomic weight 63.6 g/mol) is deposited using a current of 10.0 A. What m
salantis [7]

Answer : The mass of copper deposit is, 1.98 grams

Explanation :

First we have to calculate the charge.

Formula used : Q=I\times t

where,

Q = charge = ?

I = current = 10 A

t = time = 10 min = 600 sec      (1 min = 60 sec)

Now put all the given values in this formula, we get

Q=10A\times 600s=6000C

Now we have to calculate the number of atoms deposited.

As, 1 atom require charge to deposited = 2\times (1.6\times 10^{-19})  

Number of atoms deposited = \frac{(6000)}{2\times(1.6\times 10^{-19})}=1.875\times 10^{22} atoms

Now we have to calculate the number of moles deposited.

Number of moles deposited = \frac{(1.875\times 10^{22})}{(6.022\times 10^{23})}=0.03113 moles

Now we have to calculate the mass of copper deposited.

1 mole of Copper has mass = 63.5 g  

Mass of Copper Deposited = 63.5\times 0.03113 =1.98g

Therefore, the mass of copper deposit is, 1.98 grams

5 0
3 years ago
Which of the following compounds would be primarily ionic? Methane CH4 , Ammonia NH3, Calcium Chloride CaCL2 or Carbon dioxide,
vagabundo [1.1K]
Definitely Calcium Chloride.
All the others are covalent.
7 0
3 years ago
I NEED HELP ASAPPP!! I WILL GIVE YOU A GOOD RATING LOL
ruslelena [56]

Answer:

Yes N3- is correct ion notation. The N element is in the form N2 . Also it is a triple covalent bond and so this correct

3 0
3 years ago
Other questions:
  • Why are the trends and exceptions to the trends in ionization energy observed? Check all that apply. Ionization energy tends to
    8·2 answers
  • Measurements show that the enthalpy of a mixture of gaseous reactants increases by 243.kJ during a certain chemical reaction, wh
    5·1 answer
  • Which 2 elements make up the most mass in the human body?
    8·2 answers
  • The half life of carbon 14 is 5730 years what fraction of the original c14 would you expect to be present in a fossil that is 28
    8·1 answer
  • Why is nitrogen fixation such an important step in the nitrogen cycle?
    15·1 answer
  • The corner where a perfume is initally sprayed has:
    11·2 answers
  • One of the governing laws of the universe is the thermodynamic law of entropy. Which choice best describes entropy?
    13·1 answer
  • The equilibrium constant, Kc, for the following reaction is 77.5 at 600 K. CO(g) Cl2(g) COCl2(g) Calculate the equilibrium conce
    6·1 answer
  • Which orbital is partially filled in the Zirconium (ZI) atom?
    14·1 answer
  • BRAINLIEST!!!!!! PLEASE HELP ASAP!!!!!! PLEASE ANSWER THESE!!!!! PLEASE DON'T SPAM!!!!!.​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!