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monitta
3 years ago
5

lighting a match results in light and heat since energy was not created by the match what transformation took place

Chemistry
2 answers:
Contact [7]3 years ago
7 0

It is a chemical reaction


BabaBlast [244]3 years ago
3 0
It’s a chemical reaction
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Quesiton 5 says

Which of these inferences about the author’s point of view is best supported by the entire excerpt?

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Quesiton 5 says

Which of these inferences about the author’s point of view is best supported by the entire excerpt?

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A. “She’s simply called HeLa, the code name given to the world’s first immortal human cells—her cells, cut from her cervix just months before she died.”

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3 years ago
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3 years ago
Calculate the number of moles of solute present in 185.0 mL of a 1.50 mol/L solution of HCl.
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We currently have 185.0 mL of a 1.50 mol/L solution of HCl. We want to find the number of moles there are.

Based on the given information, our volume is 185.0 mL and our molarity is 1.50. Because molarity is defined as moles / Litre, we can easily find the moles given volume by multiplying molarity by volume.

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0.185 L * 1.50 mol/L = 0.278 mol HCl

Thus the answer is 0.278 mol HCl.

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