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11111nata11111 [884]
3 years ago
13

Which is the energy source used to fuel photosynthesis?

Chemistry
2 answers:
ryzh [129]3 years ago
8 0
I think the answer is sunlight
8090 [49]3 years ago
3 0

Answer:

sunlight

Explanation:

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A mixture of gasoline and air explodes when it encounters a spark. This is
Aleksandr [31]

Answer:

<em>D. A combustion reaction</em>

Explanation:

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3 years ago
What has more particles: a mole of hydrogen or a mole of uranium?
algol [13]

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hydrogen

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7 0
2 years ago
Why can't methanol, CH3OH, be used as a solvent for sodium amide, NaNH2? Sodium amide is nonpolar and methanol is polar. Sodium
Elodia [21]

Answer: sodium amide undergoes an acid -base reaction

Explanation:

sodium amide is a ionic compound and basically exists as sodium cation and amide anion. Amide anion is highly basic in nature and hence as soon as  there is amide anion generated in the solution , Due to its very pronounced acidity it very quickly abstracts the slightly acidic proton available on methanol.

This leads to formation of ammonia and sodium methoxide.

Hence sodium amide reacts with methanol and abstracts its only acidic proton and form ammonia and sodium Methoxide.

Hence the 3rd statement is a corrects statement.

So we cannot use methanol for sodium amide because sodium amide itself would react with methanol and the inherent molecular natur of sodium amide would then change.

The 1st and 2nd statements both are incorrect because both the compounds methanol as well as sodium amide have dipole moments and hence are polar molecules.

The 4th statement is also incorrect as both the molecules have dipole moment and hence there would be ion-dipole forces operating between them.

The following reaction occurs:

NaNH₂+CH₃OH→NH₃+CH₃ONa

4 0
3 years ago
Which of the following are examples of elements?<br> a. CO<br> b. Li<br> c. KBr<br> d. Ca
bogdanovich [222]

\huge\boxed{\textsf{Li and Ca}}

An element is a substance that can't be broken down further. Lithium (Li) and calcium (Ca) are examples of elements.

Carbon monoxide (CO) and potassium bromide (KBr) are examples of compounds, which are made up of more than one element put together.

6 0
2 years ago
Read 2 more answers
Which TWO scientist proposed an atomic model with a nucleus.
Zina [86]

Answer:

A. Rutherford and Bohr

Explanation:

I think this is right but I am not sure it has been a while since i read about them

7 0
3 years ago
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