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
Katen [24]
3 years ago
11

I have to write a report (below) could someone start me off?

Chemistry
1 answer:
sergey [27]3 years ago
3 0

Answer:

In everyday use, "theory" frequently implies an untested hunch, or a supposition without supporting proof.  For scientists, a theory has about the contrary significance. A hypothesis is a very much validated clarification of am aspect of the natural world that can join laws, speculations and realities.

Explanation:

I hope this helps!

You might be interested in
Please help me with this basic organic conversion.<br>use the shortest way to do it​
jonny [76]

Answer:

See explanation

Explanation:

This conversion must go through a sequence of steps as i have shown in the image attached to this answer.

The acetone is converted to propan-2-ol using LiAlH4, THF and acid. The  propan-2-ol may be converted to propene by E2 elimination. Addition of HBr yields 2-bromo propane.

The Wurtz reaction converts 2-bromo propane to 2,3- dimethyl butane. This can be brominated in the presence of light to yield 3-bromo-2,3-dimethyl butane. Elimination of HBr using a base leads to the formation of the required product as shown.

7 0
2 years ago
The chemical equation below shows the reaction of glucose and oxygen.
goldfiish [28.3K]
• Aerobic respiration, photosynthesis


It is aerobic because it requires oxygen to be carried out. Anaerobic on the other hand does not require oxygen.

It’s two products would be the reactants for photosynthesis because in photosynthesis the reverse reaction takes place as glucose is produced along with water from carbon dioxide (CO2) and water (H2O) in the presence of chlorophyll and sunlight.
7 0
3 years ago
Which is a physical characteristic of a fish?
Nitella [24]

Answer:

Gill's

Explanation:

Fish's have many characteristics that differ from humans, and one of them is the gills.

3 0
3 years ago
How is the periodic table used to predict the properties of an element?
Novosadov [1.4K]
There are many ways to predict the properties of an element here's one example.As you move from left to right the electron affinity and ionization  energy both increase .Since elements of the same family have similar characteristic,you can often  predict the properties of another element in its family
3 0
3 years ago
15.0 moles of gas are in a 8.00 L tank at 22.3 ∘C∘C . Calculate the difference in pressure between methane and an ideal gas unde
leva [86]

Answer:

\Delta P=4.10atm

Explanation:

Hello!

In this case, since the ideal gas equation is used under the assumption of no interaction between molecules and perfectly sphere-shaped molecules but the van der Waals equation actually includes those effects, we can compute each pressure as shown below, considering the temperature in kelvins (22.3+273.15=295.45K):

P^{ideal}=\frac{nRT}{V}=\frac{15.0mol*0.08206\frac{atm*L}{mol*K}*295.45K}{8.00L}=45.5atm

Next, since the VdW equation requires the molar volume, we proceed as shown below:

v=\frac{8.00L}{15.0mol}=0.533\frac{L}{mol}

Now, we use its definition:

P^{VdW}=\frac{RT}{v-b} -\frac{a}{v^2}

Thus, by plugging in we obtain:

P^{VdW}=\frac{0.08206\frac{atm*L}{mol*K}*295.45K}{0.533mol/L-0.0430L/mol} -\frac{2.300L^2*atm/mol^2}{(0.533L/mol)^2}\\\\P^{VdW}=49.44atm-8.09atm\\\\P^{VdW}=41.4atm

Thus, the pressure difference is:

\Delta P=45.5atm-41.4atm\\\\\Delta P=4.10atm

Best regards!

6 0
3 years ago
Other questions:
  • Which activity most likely involves the direct use of saturated hydrocarbons?
    13·2 answers
  • What is the purpose of the scientific method? ON APEX LEARNING
    10·2 answers
  • What is the definition of nuclear energy???
    15·2 answers
  • Sibling rivalry may occur when:
    7·1 answer
  • Which of the following is in the correct order of boiling points for NaNO₃, CH₃OH, C₂H₆, and Ne?A) Ne &lt; CH₃OH &lt; C₂H₆ &lt;
    10·1 answer
  • How many moles are in 124.7 g of Ba(OH)2
    13·1 answer
  • There is a third bromobutene structure that could have been formed in the addition of HBr to butadiene: cis-1-bromor-2-butene (t
    12·1 answer
  • Which reproductive structure is correctly paired with its functions
    10·2 answers
  • PLS HELP FOR FINAL!!!!!!!!!!!!!!
    11·2 answers
  • A refrigerator uses_________________________ energy to move the_________________________ through the refrigerator pipes.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!