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lora16 [44]
3 years ago
13

Which group of elements are the most important for living organisms?\

Chemistry
2 answers:
Drupady [299]3 years ago
6 0
B- Carbon nitrogen and oxygen. All organisms are made up of carbon, oxygen is essential to breath, and nitrogen makes up most of earth's atmosphere.
Serhud [2]3 years ago
4 0
The answer is b carbon nitrogen and oxygen

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Which of the following is true of a balanced equation?
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When are elements heavier than iron formed by stars?(1 point)
antiseptic1488 [7]

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The answer <em>should</em> be 2. as a dying star explodes

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6 0
2 years ago
Read 2 more answers
You titrate 25.00 ml of 0.1894 M acetic acid with 0.2006 M NaOH. How many ml of NaOH (to four significant figures) will be requi
Anvisha [2.4K]

Answer:

23.60 mL NaOH

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The reaction is CH3COOH + OH- --> CH3COO+ + H2O

Since the reaction is one-to-one, we can use M1V1 = M2V2.

M1 = 0.1894 M CH3COOH

V1 = 25.00 mL CH3COOH

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V2 = ?

Solve for V2 --> V2 = M1V1/M2

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8 0
3 years ago
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