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
Kitty [74]
3 years ago
5

Ayudaaaaaaaaaaaaaaaaa​

Chemistry
1 answer:
nataly862011 [7]3 years ago
5 0

Answer:

es procariota la 1 creo

Explanation:

You might be interested in
Can I get some help?
Brut [27]
Yes, of course))))))
6 0
3 years ago
please help me with Chem I ONLY HAVE 5 MINUTES if methane gas (CH4) flows at a rate of 0.25L/s, how many grams of methane gas wi
Nookie1986 [14]

Answer:

643g of methane will there be in the room

Explanation:

To solve this question we must, as first, find the volume of methane after 1h = 3600s. With the volume we can find the moles of methane using PV = nRT -<em>Assuming STP-</em>. With the moles and the molar mass of methane (16g/mol) we can find the mass of methane gas after 1 hour as follows:

<em>Volume Methane:</em>

3600s * (0.25L / s) = 900L Methane

<em>Moles methane:</em>

PV = nRT; PV / RT = n

<em>Where P = 1atm at STP, V is volume = 900L; R is gas constant = 0.082atmL/molK; T is absolute temperature = 273.15K at sTP</em>

Replacing:

PV / RT = n

1atm*900L / 0.082atmL/molK*273.15 = n

n = 40.18mol methane

<em>Mass methane:</em>

40.18 moles * (16g/mol) =

<h3>643g of methane will there be in the room</h3>
5 0
3 years ago
At 25 ∘C the reaction CaCrO4(s)←→Ca2+(aq)+CrO2−4(aq) has an equilibrium constant Kc=7.1×10−4. What is the equilibrium concentrat
Nitella [24]

Answer:

2.67 × 10⁻²

Explanation:

Equation for the reaction is expressed as:

CaCrO₄(s)    ⇄      Ca₂⁺(aq)         +        CrO₂⁻⁴(aq)

Given that:

Kc=7.1×10⁻⁴

Kc= [Ca^{2+}][CrO^{2-}_4]

Kc= [x][x]

Kc= [x²]

7.1×10⁻⁴ =  [x²]

x = \sqrt{7.1*10^{-4}}

x = 0.0267

x = 2.67*10^{-2}

6 0
3 years ago
Compose a report about three careers in genomics. In your report, answer the following questions:
Rina8888 [55]

Answer:

I don't wanna intrigue but I think this is how you want things to go. But to make it easier all you have to do is look up "what is genomics" and then simply answer each question should take maybe 5-7 minutes. Just trying to help :)

4 0
2 years ago
Study the following unbalanced half-reaction. Which equation represents the balanced half-reaction? H2O2 ---&gt; H2O
Aleonysh [2.5K]
O: 1*2 = 2*1 
<span>H 2 + 2 = 2*2 </span>

<span>answer C hope you get it right</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • How many grams of agarose would you add to make 50ml of a 2 percent gel? why?
    5·1 answer
  • The equation that describes the process of photosynthesis
    7·2 answers
  • "How much NH4Cl, when present in 2.00 liters of 0.200 M ammonia, will give a solution with pH = 8.20? For NH3, Kb = 1.8 x 10-5"
    7·1 answer
  • An aqueous solution contains three sulfate ions for every two aluminum ions. What is the solute?
    13·1 answer
  • Topsoil is considered to be most fertile when it has a
    7·2 answers
  • Compute the following and give your answer on scientific notation
    8·1 answer
  • When the pressure of a gas doubles, the new volume
    9·1 answer
  • HELP! ONLY HAVE &amp; MINUTES LEFT!
    5·1 answer
  • What element has 4 valence electrons and 5 electron shells?
    11·1 answer
  • Ice usually forms on the top part of lakes not the bottom , the reason for this occurence is?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!