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ANTONII [103]
2 years ago
8

Which of the following is not a reason to volunteer?

Chemistry
2 answers:
Helen [10]2 years ago
8 0

Answer:

hi

Explanation:

A. to make money

have a nice day

bye

Reptile [31]2 years ago
4 0

Answer:

A. To make money

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
Marta_Voda [28]

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

Number of moles = 2.4g/97.10 g/mol =0.0247 moles

2 moles of HSO3NH2 yields 1 mole of Ba(SO3NH2)2

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)

Number of moles = mass/ molar mass

Molar mass = mass/ number of moles

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

7 0
2 years ago
Understanding chemistry is important for all citizens, particularly people who wish to become political leaders one day
V125BC [204]
Yes and no because it's important for a citizen to have a grasp on chemistry but you do not need it to be a politician
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Question 3(Multiple Choice Worth 1 points)
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Answer:

Do research on a Particular topic

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What happens when an electron moves from a high energy level to a lower one? it absorbs light it emits light it disappears it ge
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Answer: The correct answer is it emits light.

Explanation:

When an electron is present in ground level that is the lower energy level and moves to the higher energy level, the energy is provided to the electron which means that it absorbs light. This is known as absorption.

When an electron present in the higher energy level comes back to the lower energy level, it emits radiations in the form of light. This is known as emission.

Hence, the correct answer is it emits light.

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Explanation:

Climate is the period of time average weather condition which occurs at a place

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