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3 years ago

Write one scientific question about the organism in the photo

Chemistry

2 answers:

jok3333 [9.3K]3 years ago

7 0

How has this bird adapted to it's environment throughout its existence?

Rom4ik [11]3 years ago

6 0

Answer : What is the special adaptation feature exhibited by this particular species of bird?

Explanation : There can be many number of scientific questions that can be made by looking at this picture. The only requirement of a scientific question should be that it may lead to a hypothesis and help in answering or figuring out the reason for some observation.

Here, the question that can be written is -

What is the special adaptation feature exhibited by this particular species of bird?

This can help the answerer to find the reason why it survived being a special species and find its adaptive features too.

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If 52.5 mL of lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.248 g of precipitate, wh

user100 [1]

Explanation:

The volume of given lead nitrate solution is:

52.5 mL.

The amount of lead iodide formed is ---0.248 g.

To get the molarity of lead (II) ion follow the below-shown procedure:

The number of moles of lead iodide formed is:

$number of moles of lead iodide(n)=mass of lead iodide/its molecular mass\\n=0.248 g/461.01g/mol\\n=0.000537mol$

0.000537 mole of lead iodide contains --- 0.000537 moles of lead (II) ion.

Thus, the number of moles are there, volume is there, and to get the molarity of lead (II) ion use the formula:

$Molarity=\frac{number of moles}{volume in L.} \\M=0.000537 mol / 0.0525 L.\\M=0.0102mol/L$

Molarity of lead iodide is --- 0.0102 M.

7 0

2 years ago

Sodium bicarbonate is the chemical name for baking powder. Its chemical formula is NaHCO3. What does the subscript 3 mean?

dezoksy [38]

Three atoms of oxygen

6 0

2 years ago

Read 2 more answers

Which product would form if chlorine gas was bubbled through a solution of sodium bromide

Jobisdone [24]

This is what is normally termed a single replacement reaction, although don't hold me to that. It could have changed to something more modern.

$Cl_{2} + NaBr \longrightarrow Br_{2} + NaCl$

3 0

2 years ago

Read 2 more answers

When ethyl ether is heated with excess HI for several hours, the only organic product obtained is ethyl iodide. T/F

Anastasy [175]

Answer:

True

Explanation:

Ethers react with HI to form the corresponding alcohols and alkyl iodides.

Similarly, ethyl ether react with excess of HI to form ethanol and ethyl iodide. But in the excess of HI as mentioned in the question, ethanol too undergoes $S^{N}2$ reaction with HI to form ethyl iodide.

<u>Hence, ethyl iodide is the only product when ethyl ether reacts with excess of HI for several hours.</u>

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3 years ago

A mass spectrometer has determined the mass and abundances of all isotopes of an unknown element. The first isotope has a mass o

shepuryov [24]

Answer:

I believe it is Potassium (K)

Explanation:

I did the math on a calculator and it was the closest atomic mass to potassium.

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3 years ago