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
mr Goodwill [35]
2 years ago
7

Select the example of symbiosis, chosen from the list below that is best described by the statement shown.

Chemistry
1 answer:
ololo11 [35]2 years ago
8 0

Answer:

can you show us the list

Explanation:

You might be interested in
The electrons in an insulator are tightly bound to their atoms.
Murrr4er [49]
If its a true or false statement . the answer is true 
4 0
3 years ago
Read 2 more answers
In this experiment you will create solutions with different ratios of ethanol and water. What is the mole fraction of ethanol wh
Andrej [43]

Answer:

The mole fraction of ethanol is 0.6. A 10 mL volumetric pipette must be used for to measure the 10 mL of ethanol. The vessel should be clean and purged.

Explanation:

For calculating mole fraction of ethanol, the amount of moles ethanol must be calculated. Using ethanol density (0.778 g/mL), 10 mL of ethanol equals to 7.89 g of ethanol and in turn 0.17 moles of ethanol. The same way for calculate the amount of water moles (ethanol density=0.997 g/mL). 2 mL of water correspond to 0.11. The total moles are: 0.17+0.11=0.28. Mole fraction alcohol is: 0.17/0.28=0.6

5 0
3 years ago
What method will you use for your campaign?
Allushta [10]
Sorry I’m only answering so I could upload
6 0
3 years ago
What three countries are considered the ‘big three’ when it comes to space programs and are the only countries to successfully l
Colt1911 [192]

Answer:

C. United States, Russia, and China

Explanation:

Only three nations (Russia, U.S., China) have launched their own crewed spacecraft, with the Soviets/Russians and the American programs providing rides to other nations' astronauts. Twenty-seven "first flights" occurred on Soviet or Russian flights while the United States carried fourteen.

8 0
2 years ago
Plzzz help do your best to answer these questions
vovikov84 [41]

The empirical formula is the simplest formula of a chemical compound.

To find the empirical formula, we take the following steps;

  • Divide the percentage by mass of each element by its relative atomic mass.
  • Divide the quotient of each by the lowest value obtained instep 1 above
  • Write the result of step 2 above as the subscript following each atom.

1) O - 88.10/16,      H - 11.190/1

  O - 5.5,               H - 11.19

  O - 5.5/5.5,        H - 11.19/5.5

  O -  1,                 H - 2

Empirical formula = OH2

2) C - 41.368/12  H - 8.101/1,   N - 32.162/14,   O - 18.369/16

   C - 3,               H - 8,           N - 2,                  O - 1

   C - 3/1,            H - 8/1          N - 2/1                 O - 1/1

    C - 3,             H - 8,           N - 2,                   O - 1

Empirical formula = C3H8N2O

To obtain the molecular formula where n = number of atoms of each element;

Molecular weight = 174.204 g/mol

[ 3(12) + 8(1) + 2(14) + 16]n = 174

n= 174/88

n = 2 (to the nearest whole number)

Hence, we have;

[C3H8N2O]2

The molecular formula is C6H16N4O2

3)  C - 19.999/12,  H - 6.713/1,   N - 46.646/14,   O - 26.641/16

    C - 2,                H - 7,            N -  3,                 O - 2

    C - 2/2,            H - 7/2,         N -   3/2,             O - 2/2

    C - 1,                H - 4,            N -  2,                  O - 1

Empirical formula - CH4N2O

brainly.com/question/1363167

5 0
3 years ago
Other questions:
  • Aisha drops an antacid tablet in water and times how long it takes to dissolve. Which of the following will decrease the reactio
    14·2 answers
  • How can I separate gasoline and vegetable oil?
    13·1 answer
  • What are the reactants to burning paper and the products
    7·1 answer
  • Bromine has two isotopes: 50.69% of Bromine has a mass number of 79 while 49.31% of Bromine has a mass number of 81. Calculate t
    14·1 answer
  • How many electrons do carbon and oxygen share?<br> I-0-I<br> :0:<br> Intro<br> Done
    12·2 answers
  • What is the conjugate acid for the base, NH4?​
    6·1 answer
  • Mechanical energy is the energy of?
    6·1 answer
  • Which atoms in the pair has the larger atomic radius ? Help please !!
    12·2 answers
  • Please help me i need this asp
    11·1 answer
  • A sample osoxooso sixisoxoso
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!