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
dezoksy [38]
3 years ago
9

Helppppp with this pleasee

Chemistry
1 answer:
vazorg [7]3 years ago
3 0

Answer:

A. 1, 2, 5

Explanation:

Count the number of Ns in the formula.

- Hope that helped! Please let me know if you need a further explanation.

You might be interested in
What are the answers to the blanks to make this equation balanced
Eddi Din [679]

1Al+6NaOH==>2Na_{3}AlO_{3}+3H_{2}


Hope this helps!

5 0
3 years ago
Carla has 45$. Pineapples cost $5 each
ollegr [7]
She can buy 9 pineapples. I don't know why anyone would need that many pineapples
8 0
3 years ago
Read 2 more answers
HELP!!!!!!PLZ!!!!!ASAP!!!!!
AfilCa [17]
It is an open series circuit and this is why:
 
its obvious its a series circuit because all the symbols are in a straight rectangle. 
its an open circuit because an open circuit has something that doesn't allow the electrons to flow all the way. and the thing blocking the electrons it the switch which is open, (off).

Hope this helped!! sorry its late!!
8 0
3 years ago
How many moles of C3H8 will be produced from 75 moles of CO2?C3H8 + 5 O2 → 3 CO2 + 4 H2O
levacccp [35]

25 moles of C3H8 will be produced from 75 moles of CO2.

<h3>Mole calculation</h3>

To find the value of moles of a product from the number of moles of a reactant, it is necessary to observe the stoichiometric ratio between them:

                             C_3H_8 + 5 O_2 = > 3 CO_2 + 4 H_2O

Analyzing the reaction, it is possible to see that the stoichiometric ratio is 1:3, so we can perform the following expression:

                           

                            C3H8                CO2

                                      \frac{1mol}{xmol} =\frac{3mol}{75mol}

                                         x = 25mol

So, 25 moles of C3H8 will be produced from 75 moles of CO2.

Learn, more about mole calculation in: brainly.com/question/2845237

8 0
2 years ago
Which law is described by saying that when the pressure of a gas in a sealed container is cut in half, the gas will double in vo
Mamont248 [21]

the answer is boyle's law

8 0
3 years ago
Read 2 more answers
Other questions:
  • How many molecules are in a 189 g sample of carbon tetrabromide, CBr4 ?
    5·1 answer
  • Convert 0.74Kcal/min to cal/sec
    9·1 answer
  • Name two elements in which the last electrons to be added are placed into s subshells
    5·1 answer
  • 1. Of 100 animals on a farm, 20% are horses, 15 % are pigs, 30% are cows, and 35% are
    8·1 answer
  • During and exothermic reaction, energy is _______ the surroundings.
    8·1 answer
  • Using the law of conservation of energy, explain why an LED light is more energy efficient that an incandescent light bulb.
    11·1 answer
  • How many kilograms of water at 15oC can be heated to 95oC by burning 143 grams of methane, CH4, assuming that 100% of the heat i
    10·1 answer
  • Which of the following substances has
    9·2 answers
  • Is the prime meridian a longitudinal or latitudinal line?
    13·1 answer
  • 1. What causes frost to form on the outside of a<br>cold container.​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!