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3 years ago

Which two structures would provide a positive identification of a animal cell under a microscope

2 answers:

8 0

<span>The two structures are lysosomes and central vacuole

Hope it helps ;)

You look beautiful ;P (if thats you)</span>

babunello [35]3 years ago

4 0

Lack of cell walls no chloroplasts...hoped that helped

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The act of changing something but not being able to change it back

SCORPION-xisa [38]

I would assume it would be impossible or unlikely

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3 years ago

What is the oxidation number of Cl in chlorate ion ClO3?

Kryger [21]

The correct answer to this question is "5." the oxidation number of cl in ClO3 will be a positive 5 because oxygen is naturally a -2 charge. times that by three and then account for the negative charge of the CLO3- ion.

8 0

3 years ago

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What volume of o2 is needed to react fully with 720. Ml of nh3

Galina-37 [17]

Ammonia undergoes combustion with oxygen to produce nitric oxide and water. The volume of the oxygen required to react with 720 ml of ammonia is 900 ml.

<h3>What is volume?</h3>

Volume is the area occupied by the substance and is the ratio of the mass to the density.

At STP, 1 mole of gas occupies 22.4 L of volume

Given,

Volume of ammonia reacted = 0.720 L

The combustion reaction is shown as,

$\rm 4NH_{3} + 5O_{2} \rightarrow 4NO +6H_{2}O$

From the stoichiometry of the reaction, it can be said that,

$(4 \times 22.4)$ L of ammonia reacts with $(5 \times 22.4)$ L of oxygen gas.

So, 0.720 L of ammonia will react with:

$\dfrac{ (5 \times 22.4)}{(4 \times 22.4)} \times 0.720 = 0.9 \;\rm L$

Therefore, the volume of oxygen required is 900 mL.

Learn more about volume here:

brainly.com/question/14090111

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2 years ago

Aptitude is the capacity to learn a particular skill or acquire a particular body of knowledge. Please select the best answer fr

Luden [163]

<h2>Answer:</h2>

True

<h2>Explanation:</h2>

we can describe aptitude as an innate ability of a person to do something. There are different aptitude test in which we test the skills and ability to do different work or his attitude toward success or failure.

So, we can say that aptitude is the capacity to learn a particular skill or acquire a particular body of knowledge.

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3 years ago

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What should you do during a titration when you notice the indicator start to indicate the approach of the equilibrium point? Add

Leni [432]

B. Add the second reactant slower.

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3 years ago

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