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Slav-nsk [51]
3 years ago
10

Please help me with this, it's due in 7 minutes. I don't quite get it.

Chemistry
2 answers:
victus00 [196]3 years ago
8 0

Answer:

Healthy ecosystems have an energy source which comes from the sun

-hope this helps! :)

Explanation:

stiks02 [169]3 years ago
3 0
Put in a food chain type thing. And put it in the order of the choices you have.
You might be interested in
What is the total number of pairs of electrons that one carbon atom shares?
wel

Answer:

4

Explanation:

A carbon atom has 4 electrons in its outermost shell (2s^2p^2).  All are unpaired (none share their orbital with another electron).  So all four are anxious to pair with another electron.  Once it has found 4 more electrons contributed from other atom(s), it will have 4 pairs of shared electrons.

Hydrogen has one lone electron.  An atom of H is downright gleeful in sharing it's electron with elements such as carbon, C.  Since carbon has 4 unpaied electrons, it will combine with 4 H atoms.  At that point, cabon is sharing 4 electron pairs.

8 0
2 years ago
What type of reaction is a grignard reaction? What is the critical intermediate (which can be isolated and enables the final pro
nydimaria [60]

Organometallic Chemical reaction is a Grignard reaction. The critical intermediate (which can be isolated and enables the final product) is the formation of a carbon bond.

The Grignard Reaction is an organometallic chemical reaction that mostly produces C-C bonds. When organic molecules are combined with the Grignard reagent, the Grignard reaction occurs (Rmgx).

The Grignard Reaction is the conversion of an aldehyde or ketone into secondary or tertiary alcohol by the addition of an organomagnesium halide (Grignard reagent). A primary alcohol is produced when formaldehyde and oxygen react.

Alcohol and water molecules have acidic hydrogen atoms that Grignard reagents quickly react with. A proton substitutes the halogen in a Grignard reaction with water, producing an alkane as the end result. Therefore, the Grignard reagent offers a two-step process for changing a haloalkane into an alkane.

To learn more about Grignard's reaction please visit -
brainly.com/question/17135014
#SPJ4

7 0
2 years ago
The dipole measured for HI is 0.380 D. The bond distance is 161 pm. What is the percent ionic character of the HI bond?
Feliz [49]

Answer:

Percent ionic character of HI bond is 4.91%.

Explanation:

<h3>Given Data:</h3>

Measured Dipole = 0.380D

bond distance = d = 161pm = 1.61*10^-8 cm

<h3>Calculation:</h3>

% ionic character is determined by following equation:

% ionic= (dipole measured/dipole calculated)*100

Now,

Dipole(calc)=qd

Dipole(calc)= (1.6*10^{-19}*3*10^{9})esu  *1.61*10^{-8}cm

(In above step 3*10^8 is multiplied to convert coulomb into esu)

Dipole(calc)=7.728*10^{-18} esu*cm

As,

10^{-18}esu*cm= 1D

So,

Dipole(calc)=7.728D

Now we can % ionic character using above equation:

%ionic=(0.380D/7.728D)*100

% ionic character=4.91%

5 0
4 years ago
What is the atomic mass number of an isotope that has an atomic number of 5 and includes 6 neutrons?
irinina [24]

The answer should be; 11

The atomic mass number is found by combining the number of protons and neutrons

Hope this helps :)

8 0
3 years ago
Read 2 more answers
How do I balance <br>H2O ⇾ H2 + O2
hammer [34]
I change the coefficient 2 to 2 times 2 that will give me 4 so at this point on each side of the equation I have the same number for each type of atom that means this equation is balanced.
6 0
3 years ago
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