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seropon [69]
3 years ago
5

Read the following hypothesis about why a chicken bone becomes bendy after being soaked in vinegar: The bone can bend because th

e acid in the vinegar has removed the calcium that made it hard. What prediction could be made based on this hypothesis? A. An acidic substance like many drinks wouldn't make bones bendy. B. Acids are very powerful substances and should be handled with care. C. Other kinds of bones containing calcium wouldn't get bendy in the vinegar. D. If the acid was separated from the vinegar, chicken bones wouldn't become bendy in the remaining vinegar.
Chemistry
2 answers:
Genrish500 [490]3 years ago
7 0

Answer:

D. If the acid was separated from the vinegar, chicken bones wouldn't become bendy in the remaining vinegar.

Explanation:

The hypothesis states that the bone becomes bendy because of the acid in the vinegar, so therefore, if the acid is removed from the vinegar it won't become bendy.

kakasveta [241]3 years ago
6 0

Answer:

d

Explanation:

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When a solution containing 1.4000 g of Ba(NO3)2 and 2.4000 g of HSO3NH2 is boiled, a precipitate forms. One possible identity fo
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Answer:

See explanation for detailed solution

Explanation:

The balanced reaction equation is Ba(NO3)2 + 2HSO3NH2 → Ba(SO3NH2)2 + 2HNO3

Number of moles of Ba(NO3)2 = 1.4 g/ 261.337 g/mol = 5.36 × 10^-3 moles

From the reaction equation;

1 mole of Ba(NO3)2 yields 1 mole of Ba(SO3NH2)2

5.36 × 10^-3 moles of Ba(NO3)2 yields 5.36 × 10^-3 moles of Ba(SO3NH2)2

For HSO3NH2

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0.0247 moles of HSO3NH2 yields 0.0247 ×1/2 = 0.0137 moles

Hence, Ba(NO3)2 is the limiting reactant

The theoretical yield of Ba(SO3NH2)2 is 5.36 × 10^-3 moles × 329.4986 g/mol = 1.766 g

b)

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Molar mass = mass/ number of moles

Molar mass = 1.6925 g/5.36 × 10^-3 moles = 315.76 g

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Read 2 more answers
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