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Vinil7 [7]
3 years ago
13

Physical or Chemical Change? Burning leaves

Chemistry
2 answers:
Alexxandr [17]3 years ago
7 0

Answer:

Chemical change

Explanation:

brilliants [131]3 years ago
5 0

Answer:

physical change......

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What is component of John Dalton’s atomic theory?
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•All atom of  same element have equal atomic mass and identical properties.

•Compounds are made up two or more different types of atoms.

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How many moles of Cl– ions are in 2.20 L of 1.50 M of sodium-chloride aqueous solution?
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6) Using the rules for significant figures, the sum of 0.027 gram
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Question 9
Shkiper50 [21]

Answer: There are 20 milliliters of 1.0 M HCl is required to be diluted to make 200 mL of a 0.1 M solution.

Explanation:

Given: M_{1} = 1.0 M,    V_{1} = ?

M_{2} = 0.1 M,    V_{2} = 200 mL

Formula used is as follows.

M_{1}V_{1} = M_{2}V_{2}

Substitute values into the above formula as follows.

M_{1}V_{1} = M_{2}V_{2}\\1.0 M \times V_{1} = 0.1 M \times 200 mL\\V_{1} = \frac{0.1 M \times 200 mL}{1.0 M}\\= 20 mL

Thus, we can conclude that there are 20 milliliters of 1.0 M HCl is required to be diluted to make 200 mL of a 0.1 M solution.

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