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
Bingel [31]
2 years ago
15

I JUST NEED HELP!!!!

Chemistry
1 answer:
lord [1]2 years ago
8 0

Answer:

D ( I am probably wrong)

Explanation:

You might be interested in
What are the elements that make up aspirin
lina2011 [118]
<span>I believe the elements that make up aspirin are carbon, hydrogen and oxygen. </span>
4 0
3 years ago
Read 2 more answers
Which method would you use to separate silt from water
jonny [76]
The answer is "filtration"

Filtration is used to seprate a solid from a liquid in which it is suspended. Filtration is also used to separate a substance from a mixture because one is insoluble in the solvent and the other is solube. The separation is due to particle size.

I hope this helps.
8 0
2 years ago
Read 2 more answers
During the reaction of 2-methyl-2-butanol with the nucleophile-solvent mixture two layers are formed after shaking the reaction
Xelga [282]

Answer:

Top layer is Organic (CH2Cl2 and product)

Explanation:

In a solvent mixture, there are usually two phases, the organic phase and the aqueous phase.

It is usual that the organic phase is almost always less dense than the aqueous phase hence the organic phase tend to remain on top of the aqueous phase.

Hence, the top layer is expected to be the organic CH2Cl2 and product.

8 0
3 years ago
There are 34 qeustions on a test John answers 22 of them correctly what is his percent error
Aleks [24]

Answer:

35.29%

Explanation:

% error = |experimental value - Accepted value| / Accepted Value x 100

Number of questions: 34

Number of questions answered: 22

%error = |22-34| / 34 x 100

Hence, John's percentage error is 35.29 % or 35.3%

4 0
2 years ago
The combustion of 3.795 mg of liquid B, which contains only C, H, and O, with excess oxygen gave 9.708 mg of CO2 and 3.969 mg of
attashe74 [19]

Answer:

Explanation:

9.708 mg of CO₂ will contain 12 x 9.708 / 44 = 2.64 g of C .

3.969 mg of H₂O will contain 2 x 3.969 / 18 = .441 g of H .

mg of O in given liquid B = 3.795 - ( 2.64 + .441 ) = .714 mg

ratio of mg of C , H , O in the compound = 2.64 : .441 : .714

ratio of no of atoms  of C , H , O in the compound

= 2.64 / 12 : .441 /1 : .714 / 16

= .22 : .44 : .0446

= .22 / .22 : .44 / .22 : .044 / .22

= 1 : 2 : .2

1 x 5 : 2 x 5 : .2 x 5

= 5 : 10 : 1

empirical formula of the compound = C₅H₁₀O

Volume of 89.8 mL at 1 .00 atm at 200⁰C

volume of gas at 1 atm and 0⁰C = 89.8 x 273 / 473 mL

= 51.83 mL

51.83 mL weighs .205 g

22400 mL will weigh .205 x 22400 / 51.83 g

= 88.6 g

So molecular weight = 88.6

Let molecular formula be (C₅H₁₀O)ₙ

molecular weight = n ( 5 x 12 + 10 + 16 )

= 86 n

86 n = 88.6

n = 1 approx

So molecular formula is same as empirical formula

C₅H₁₀O is molecular formula .

6 0
2 years ago
Other questions:
  • What is a necessary reactant for glycolytic, or anaerobic, catabolism to proceed?
    14·1 answer
  • Given the data in the accompanying table, what is the rate law for the reaction? Initial A: 0.20, 0.20, 0.40 Initial B: 0.10, 0.
    7·2 answers
  • Systematic error is defined as:_______.
    14·1 answer
  • NEEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • Which of these is an element?
    8·2 answers
  • WM "Please write the molecular formula for the following by criss cross method. 1. Calcium nitrate 2. Sodium bicarbonate 3. Magn
    6·1 answer
  • What is the formula for potassium nitrate? (3 points) a KN b K3N c KNO2 d KNO3
    14·1 answer
  • Which term refers to an element that conducts electricity at high temperatures, but not at low temperatures?
    9·2 answers
  • The molar heat of vaporization for methane, CH4, is 8. 53 kJ/mol. How much energy is absorbed when 54. 8 g of methane vaporizes
    8·1 answer
  • A copper sulfate solution contained 0.100 moles of copper sulfate dissolved
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!