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
skad [1K]
3 years ago
13

Consider this reaction: 2al(s) + 3 cucl2(aq) → 2alcl3(aq) + 3 cu(s) if the concentration of cucl2 drops from 1.000 m to 0.655 m

in the first 30.0 s of the reaction, what is the average rate of reaction over this time interval?
Chemistry
1 answer:
Flura [38]3 years ago
6 0
Answer= 0.0115 M/s

Solution,

Rate of reaction =Change in concentration of CuCl2/time taken for change
                          = 1.000-0.655/30
                         = 0.345/30
                         = 0.0115 M/s


You might be interested in
Global climate change is
WARRIOR [948]
It’s d man..........
4 0
3 years ago
1. Chlorobenzene, C6H5C1, is used in the production of chemicals such as aspirin
Natalka [10]
C6H6(l) + 6 Cl2(g) = C6Cl6(s) + 6 HCl(g)
3 0
3 years ago
The p-value of a statistical test depends on all of the following, except:
vaieri [72.5K]

Answer:

The correct option is e.

Explanation:

p-value is the probability value for a given statistical model, the probability that, when the null hypothesis is true.

For two two samples the formula of test statistics is

t=\frac{(\overline{x}_1-\overline{x}_2)-(\mu_1-\mu_2)}{\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}}

where,

\overline{x} is sample mean

\mu is population mean.

s is standard deviation.

n is sample size.

Variance is the square of standard deviation.

It means variance, mean, numbers of samples is used in calculation of p-value.

Degree of freedom define the shape of the t-distribution that your t-test uses to calculate the p-value.

d.f.=n_1+n_2-2

p-value of a statistical test depends on all of the following, except median.

Therefore the correct option is e.

4 0
3 years ago
Plzzz help me answer this question!!,!
omeli [17]
I can’t see the picture for some reason
7 0
4 years ago
Rank these compounds by their expected boiling point? CH4 CH3Cl CH3OH? Lowest to highest; 10+ for the best explanation. Thank yo
docker41 [41]
Methane, CH4, would have the lowest boiling point among the three since it has the lowest number of carbon and has no functional groups. Methanol would have the highest boiling point since it has a functional group which contains hydrogen bonding which much stronger than the one in CH3Cl. Hope this helps.<span />
3 0
3 years ago
Read 2 more answers
Other questions:
  • A tetrahedral molecule has ___ regions of high electron density around the central atom. these molecules have central atoms with
    7·2 answers
  • How much potassium iodide (76.45% i ) should be consumed to meet the rda?
    14·1 answer
  • Many free radicals combine to form molecules that do not contain any unpaired electrons. The driving force for the radical–radic
    15·1 answer
  • Need help with question
    9·1 answer
  • Which element is a liquid at 758 K and standard pressure?
    9·1 answer
  • A chemical equation is balanced by changing or adding
    15·1 answer
  • Take a look at this dandelion. The yellow flower on the right is _______ pollinated and the seeds on the left are transported by
    15·2 answers
  • Why is the age of the ocean crust used as evidence for plate tectonics?
    7·1 answer
  • Which of the following can be represented by a single chemical symbol?
    11·1 answer
  • PLEASE HELP I DONT UNDERSTAND; THANK YOU!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!