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Alex73 [517]
3 years ago
7

A 125 g compound consists of 37% oxygen? What is the mass of oxygen in this compound?

Chemistry
1 answer:
zepelin [54]3 years ago
7 0

19.44%

I think that's the anwer

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PLEASE HELP ME I BEG YOU I DONT UNDERSTAND A THING
Andrew [12]

low level waste

Explanation:

Low level wastes are nuclear wastes generated from hospitals and industries as well as the nuclear fuel cycle, and is comprised of paper, rags, tools, clothing, filters, etc., which contain small amounts of mostly short-lived radioactivity.

  • Low level wastes are typically radioactive in nature and are difficult to dispose.
  • They originate from radioactive processes in the hospital and nuclear reactors.
  • There has been growing concerns about the safe disposal of radioactive wastes over the years.
  • They are made up of materials with short lived radioactivity.

Learn more:

Transmutation brainly.com/question/3433940

#learnwithBrainly

7 0
3 years ago
Select the three most acidic hydrogen atoms in lactic acid, CH3CH(OH)CO2H, and rank them in order of decreasing acidity. Explain
Olin [163]
It is easier to determine this if we draw the structural formula of lactic acid as shown in the attached picture. There are three functional groups in lactic acid: carboxyl group, hydroxyl group, and the parent alkane chain. Any of the hydrogens in the alkane chain is the least acidic. Then, it is followed by the H in the hydroxyl group. The most acidic is the H in the carboxyl group.

5 0
3 years ago
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What is the temperature change in 355 mL of water upon absorption of 34 kJ of heat? (The specific heat capacity of water is 4.18
frozen [14]

The temperature change is 23 °C.

<em>q = mC</em>Δ<em>T</em>

Δ<em>T</em> = <em>q</em>/(<em>mC</em>)

<em>m</em> = 355 g

∴ Δ<em>T</em> = (34 000 J)/(355 g × 4.184 J·°C⁻¹g⁻¹) = 23 °C

<em>Note</em>: The answer can have only <em>two significant figures</em> because that is all you gave for the amount of heat absorbed.

7 0
3 years ago
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An ecosystem includes the biotic and abiotic factors<br><br>true<br><br>false​
MariettaO [177]
True.

Every environment and ecosystem will include these factors.
8 0
3 years ago
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2. A sample of iron has the dimensions of 2.0 cm x 3.0 cm x
zepelin [54]
Just do it and believe in you self come on man you got it
8 0
3 years ago
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