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Sergio039 [100]
2 years ago
13

Which best defines carbon dioxide?

Biology
2 answers:
Kipish [7]2 years ago
8 0

Answer:

its answer is B hope ur help and mark me as brainlist

fomenos2 years ago
4 0

Which best defines carbon dioxide?

→ <u>B) It is the resulting molecule when one carbon atom bonds to two oxygen atoms.</u>

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Why is it important to know the pH of different solutions?
ss7ja [257]

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Explanation:

pH is a measure of the relative amount of free hydrogen and hydroxyl ions in  water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.

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Big bang theorist believe
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Before the big bang, scientists believe the entire vastness of the observable universe, including all of its matter and radiation, was compressed into a hot, dense mass just a few millimeters across. This nearly incomprehensible state is theorized to have existed for just a fraction of the first second of time.
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Thinking Critically Potassium-40 decays to
mamaluj [8]

Answer:

The radioactive isotopes of Potassium-40 generally observed to decay to argon-40 and calcium 40, also called daughter isotopes. The problem arises with the calcium 40 radioisotopes which cannot be used for age determination due to its excessive presence.

Explanation:

The radioactive isotopes Potassium 40 decays to argon 40 helps in determining age of fossils and rocks mainly due to the fact that extreme heat causes radioactive potassium to decay to noble argon-40 gas. The rate of decay is attributed to its half life period which in turns help in finding the relative age of fossils or rocks. But, problem occurs when it decays to calcium 40, as because calcium forms large part of many minerals including bone.

3 0
3 years ago
What is the difference between and acid and a base
azamat
  • pH value of acids are betwee 0 and 7 while in bases the pH value os between 7 and 14

  • acid is called a proton donor while a base is called a proton acceptor

  • base can accept a proton while an acid can accept an electron pair

  • acids are substance that give off hydrogen ions to form hydronium (H30) ions when dissolved in water while bases are substances that contain hydroxide (OH) ions when in water

hope that helps !

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you want us to write a paragraph for you??

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