Read the following hypothesis about why a chicken bone becomes bendy after being soaked in vinegar:

Chemistry

2 answers:

USPshnik [31]2 years ago

8 0

Answer:

Explanation:

got it right on the quiz

Studentka2010 [4]2 years ago

5 0

Answer:

B. observing that a bone placed in a beaker of acid becomes bendy

Explanation:

The hypothesis suggests that when chicken bones are placed in vinegar, they become bendy due to the loss of calcium in their bones.

Calcium is identified as the ossifying material that strengthens the bone. When the acid that makes up the vinegar comes in contact with it, calcium is removed from the bone.

Now we know that calcium has capabilities of reacting with acids.

This suggests that if we also place the bone in an acid, they will bend due to reaction of calcium in the bones with the acid.

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The concentration of dye in Solution A is 26.609 M. You have 13 mL of water at your disposal to make the dilutions. The solution

exis [7]

Answer:

6,613 M

Explanation:

Dilution is the process of reducing the concentration of a solute in solution, mixing initial solution with more solvent.

The concentration of Solution B is:

23,881 M × = 9,552 M

Because the initial eight parts are diluted to 12+8 parts.

Thus, concentration of solution C is:

9,552 M × = 6,613 M

I hope it helps!

8 0

3 years ago

Consider the following chemical reaction:

jolli1 [7]

From the calculation, the moles of water produced is 18 moles of water.

<h3>What is a decomposition reaction?</h3>

A decomposition reaction is one in which a substance is split up into smaller parts.

We have the reaction; 2 Cr(OH)3(aq) ------------> Cr2O3(s) + 3H2O(l)

From this reaction;

2 moles of Cr(OH)3 produced 3 moles of water

12 moles of Cr(OH)3 will produce;

12 moles * 3 moles / 2moles

= 18 moles of water

Hence, 12 moles of chromium (III) hydroxide produces 18 moles of water.

Learn more about decomposition reaction:brainly.com/question/8009068?

#SPJ1

4 0

1 year ago

Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows: 2N

Montano1993 [528]

The question is incomplete, here is the complete question:

Urea (CH₄N₂O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH₃) with carbon dioxide as follows: 2NH₃(aq) + CO₂(aq) → CH₄N₂O(aq) + H₂O(l) In an industrial synthesis of urea, a chemist combines 135.9 kg of ammonia with 211.4 kg of carbon dioxide and obtains 178.0 kg of urea.

Determine the limiting reactant. (express your answer as a chemical formula)

<u>Answer:</u> The limiting reactant is ammonia $(NH_3)$