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Paha777 [63]
3 years ago
8

What is water? pls tell fast

Chemistry
2 answers:
NikAS [45]3 years ago
4 0

The mixture of Hydrogen and oxygen. It keeps all living things alive.

Zigmanuir [339]3 years ago
4 0

It is a chemical substance made of hydrogen and oxygen. Its formula is H2O. It is needed by all organisms in order to survive.

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What the the compound formula of Fe2+ + N3- ?
Gala2k [10]

Answer:

5

Explanation:

8 0
2 years ago
A student calculates that the volume of his textbook is 991.880 cm3. what is the volume written with 3 significant figures?
k0ka [10]

The volume of the textbook calculated by the student written to 3 significant figures is 992cm³

  • According to this question, a student calculates the volume of his textbook and arrived at an answer of 991.880 cm³.

  • To round up this digit to 3 significant figures, which means that only 3 significant numbers should appear in the answer.

  • To do this, the number after the third number is 8, which means we can round up the value of 1 to 2. Hence, the volume of the textbook calculated by the student is 992cm³ in 3 s.f.

Learn more at: brainly.com/question/16563962?referrer=searchResults

7 0
2 years ago
2H+ H- H+ n + energy
lbvjy [14]

from an external source of power

Explanation:

The energy needed for nuclear fusion comes from an external source of power.

Nuclear fusion is the combination of small sized atomic nuclei to form larger ones.

The reaction releases a huge amount of energy but also requires a large activation energy to start up.

  • The energy input require to drive two nuclei into fusion comes from an external source.
  • Nuclear fusion has a high activation energy which serves as the energy barrier for this reaction to take place.
  • The energy comes from the surrounding and once initiated, spontaneous chain reactions are set up.

learn more:

Nuclear reactions brainly.com/question/10094982

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5 0
3 years ago
How can you chose values for x when making a table of values representing a real world situation?
Nitella [24]
X is usually representing time so years, days, etc
7 0
3 years ago
Year/ Distance (cm)
luda_lava [24]

Answer:

the answer is C

Explanation:

6.7 to 13.2 then look at the numbers they go up but not a lot each time

5 0
3 years ago
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