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ankoles [38]
3 years ago
13

If you could spend a billion dollars (1 x 10 to the 9th power) per second, how many years would it take to spend one mole of dol

lars?
Chemistry
1 answer:
lord [1]3 years ago
3 0
1000 to the power 4 not so good at math but
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1. 2Na + 2HCl --> 2NaCl + H2
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Which type of radioactive decay does not cause change in the atomic mass of the product
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Gamma decay/radiation

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Gamma radiation has no mass and no electrical charge which means no change in the atomic number or mass number when gamma rays are emitted.

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3 years ago
The element carbon exists in several different forms. Pure carbon can be found in the form of diamonds, coal, and the graphite i
UNO [17]

Answer:

B) All carbon atoms have 6 neutrons.

Explanation:

The false statement from the given choices is that all carbon atoms have 6 neutrons.

There is a phenomenon called isotopy in chemistry.

Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their various nuclei.

  • These atoms of elements are called isotopes.
  • Carbon atoms generally have proton number of 6 which is the same as the atomic number.
  • As with all atoms, the mass number or atomic mass equals the number of protons and neutrons.

For the isotopes of carbon, their number of neutrons differs.

 For example:

            <em>¹²₆C                           ¹³₆C                        ¹⁴₆C</em>

The number of neutrons differs in the above isotopes.

 Number of neutrons = mass number - atomic number;

    ¹²₆C  , number of neutrons  = 12 - 6  = 6

      ¹³₆C, number of neutrons  = 13 - 6  = 7

       ¹⁴₆C, number of neutrons = 14 - 6  = 8

Therefore, based on the concept of isotopy, all carbon atoms do not have 6 neutrons.

7 0
3 years ago
If the sun is next to the earth on the left, and the moon is next to the earth on the right, what type of tide is it?
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When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides—both commonly called spring tides.

3 0
2 years ago
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