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
scoundrel [369]
2 years ago
13

Which molecule is pentanoic acid?

Chemistry
1 answer:
Lana71 [14]2 years ago
7 0

Answer:

A

Explanation:carboxyli

You might be interested in
What chemical changes happen at school
kykrilka [37]

Burning, cooking

Explanation:

Chemical changes that happens in school are:

Cooking of meals

 Burning of wastes

 Chemical reactions in laboratories

Rusting of iron used in construction

  • A chemical change is a change that produces new kinds of substances.
  • These changes are usually accompanied by energy and mass changes.
  • Most of such changes are not reversible.

Chemical changes are driven by change in chemical properties of matter.

In a school, iron components might begin to rust. This is a chemical change.

learn more:

Chemical change brainly.com/question/9388643

#learnwithBrainly

8 0
2 years ago
Consider the reaction of peroxydisulfate ion (S2O2−8) with iodide ion (I−) in aqueous solution: S2O2−8(aq)+3I−(aq)→2SO2−4(aq)+I−
kolbaska11 [484]

Answer:

r = 3.61x10^{-6} M/s

Explanation:

The rate of disappearance (r) is given by the multiplication of the concentrations of the reagents, each one raised of the coefficient of the reaction.

r = k.[S2O2^{-8} ]^{x} x [I^{-} ]^{y}

K is the constant of the reaction, and doesn't depends on the concentrations. First, let's find the coefficients x and y. Let's use the first and the second experiments, and lets divide 1º by 2º :

\frac{r1}{r2} = \frac{0.018^{x} x0.036^{y} }{0.027^xx0.036^y}

\frac{2.6x10^{-6}}{3.9x10^{-6}} = (\frac{0.018}{0.027})^xx(\frac{0.036}{0.036})^y

0.67 = 0.67^x

x = 1

Now, to find the coefficient y let's do the same for the experiments 1 and 3:

\frac{r1}{r3} = \frac{0.018x0.036^y}{0.036x0.054^y}

\frac{2.6x10^{-6}}{7.8x10^{-6}} = (\frac{0.018}{0.036})x(\frac{0.036}{0.054})^y

0.33 = 0.5x 0.67^y

0.67 = 0.67^y

y = 1

Now, we need to calculate the constant k in whatever experiment. Using the first :

2.6x10^{-6} = kx0.018x0.036kx6.48x10^{-4} = 2.6x10^{-6}

k = 4.01x10^{-3} M^{-1}s^{-1}[/tex]

Using the data given,

r = 4.01x10^{-3}x1.8x10^{-2}x5.0x10^{-2}

r = 3.61x10^{-6} M/s

7 0
2 years ago
What is the total volume occupied by 132 g of CO2 at STP
Lilit [14]
132 grams x (1 mol / 44 grams) = 3 moles 
<span>3 moles X (22.4 L/ 1 mol) = 67.2 </span><span>L</span>
4 0
3 years ago
Read 2 more answers
Help!! <br> What is the concentration of an unknown with an absorbance of 0.4 using the plot?
sveta [45]

Answer:3,4,1,2

Explanation:

hope this helped

6 0
2 years ago
Which particle of the atom has a negative charge?
Alex_Xolod [135]
C.) Electron has a negative charge.....
6 0
3 years ago
Other questions:
  • A sample of sulfur hexafluoride gas occupies a volume of 5.10 L at 198 ºC. Assuming that the pressure remains constant, what tem
    14·1 answer
  • Does the solubility of a substance increase as its temperature increases
    5·1 answer
  • How many significant digits are in 0.0038020 ?
    9·1 answer
  • 88. Molybdenum, Mo is an element used in missile and aircraft parts. How many unpaired electrons are in Mo? 02 x 3 = .6 mol Catt
    12·1 answer
  • 32. Calculate How many kilojoules of heat are re-
    7·1 answer
  • The Faruq family uses 548 liters of water per day.
    7·1 answer
  • See Picture for Question. I have other questions as well.
    14·1 answer
  • Which of the following substances feels slippery and will not react with metals? *
    13·1 answer
  • Help me!!!! Please!!!!!!!!
    15·1 answer
  • An open nanometer is filled with mercury and connected to a container of hydrogen gas. The mercury level is 57mm higher in the a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!