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
sertanlavr [38]
2 years ago
7

I just need help with these 2 questions I accidentally answered the first one

Chemistry
1 answer:
Anni [7]2 years ago
7 0

Answer:

i think the pool

Explanation:

You might be interested in
A compound is 79.94g carbon, 26.82g hydrogen, and 93.24g nitrogen. What is the empirical formula?
Pani-rosa [81]

Answer:

i dont know

Explanation:

sorry

5 0
2 years ago
Which of the following is stored in the skeletal system?
tensa zangetsu [6.8K]

Answer:

b calcium

Explanation:

7 0
3 years ago
A sample of 87.6 g of carbon is reacted with 136 g of
Vadim26 [7]

Answer:

A. fluorine, 1.79 moles

Explanation:

Given parameters:

Mass of carbon  = 87.7g

Mass of fluorine gas  = 136g

Unknown:

The limiting reactant and the maximum amount of moles of carbon tetrafluoride that can be produced  = ?

Solution:

   Equation of the reaction:

             C    +   2F₂ →   CF₄  

let us find the number of the moles the given species;

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

  C;   molar mass = 12;

            Number of moles  = \frac{87.7}{12}   = 7.31moles

 F;  molar mass  = 2(19)  = 38g/mol

             Number of moles  = \frac{136}{38}   = 3.58moles

 So;

   From the give reaction:

          1 mole of C requires 2 moles of F₂

         7.31 moles of C will then require 2 x 7.31 moles of F₂ = 14.62moles

But we have 3.58 moles of the F₂;

  Therefore, the reactant in short supply is F₂ and it is the limiting reactant;

 So;

       2 moles of F₂ will produce  mole of CF₄  

       3.58 moles of F₂ will then produce \frac{3.58}{2}  = 1.79moles of CF₄

6 0
2 years ago
Please help, I really don’t understand this!!!
kap26 [50]

<u>Analysing the Question:</u>

We are given the balanced equation:

C₆H₁₂O₆ + 6O₂→ 6CO₂ + 6H₂O

from this equation, we can say that: <em>for every 1 mole of Glucose, we need 6 moles of Oxygen</em>

<u>Moles of Glucose used in the reaction:</u>

Molar mass of Glucose = 180 grams / mol

Given mass of Glucose = 1 gram

Mole of Glucose = Given mass / Molar mass

Moles of Glucose = 1 / 180 moles

<u>Mass of Oxygen required:</u>

We know that for every mole of Glucose, we need 6 moles of Oxygen

So, for 1/180 moles of Glucose, we need 6 / 180 = 1 / 30 moles of Oxygen

Mass of 1 / 30 moles of Oxygen:

Mass = Molar mass * number of moles

Mass of Oxygen = 32 * 1/30

Mass of Oxygen  = 32 / 30

Mass of Oxygen = 1.06 grams

5 0
3 years ago
PLEASE ANSWER QUICK. Place in order from simplest (top) to most complex (bottom).
Marina86 [1]

Answer:

Cell

tissue

organ

organsystem

organism

6 0
3 years ago
Other questions:
  • What's a member of the boron family and the most abundant metal in the earths crust
    11·1 answer
  • A gene which does not produce its effect when an opposite dominant gene is present is called a(n) ________ gene
    12·2 answers
  • Which set of data would be best illustrated with a graph bar?
    15·1 answer
  • Which would be best categorized as heat transfer by convection?
    8·2 answers
  • A liquid solution can be made from______. Select all that apply.
    9·1 answer
  • Match the scientist with their scientific idea. Question 2 options: Substances combine or break apart to create new, different s
    5·1 answer
  • A sample of gaseous PCl₅ was introduced into an evacuated flask so that the pressure of pure PCl₅ would be 0.50 atm at 523 K. Ho
    11·1 answer
  • Which word should replace the question mark in the diagram?
    7·2 answers
  • please someone describe the graph of the cooling curve of water !!!!!!!!!!!!!!!! Please answer !!!!!!!!!! HELP
    11·1 answer
  • Graph the circle which is centered at (4,4)(4,4)left parenthesis, 4, comma, 4, right parenthesis and has a radius of 3 units.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!