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Hatshy [7]
2 years ago
11

Which of the following happens to a molecule of an object when the object is heated? (1 point)

Chemistry
1 answer:
vfiekz [6]2 years ago
7 0

Answer:

They get more energy, so they vibrate!

Explanation:

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Why is there such a large jump and ionization energy between the second and third ionization energy‘s for magnesium?
Romashka [77]
The second ionization energy of Mg is larger than the first because it always takes more energy to remove an electron from a positively charged ion than from a neutral atom. The third ionization energy of magnesium is enormous, however, because the Mg2+ ion has a filled-shell electron configuration.
5 0
2 years ago
Is 2H2 + O2=2H2O a balanced equation
Mnenie [13.5K]

Explanation:

Yes, the equation is balanced. There are the same number of Hydrogen (H) and Oxygen (O) atoms on both sides of the equation.

7 0
2 years ago
Magnesium has three stable isotopes. One has 12 neutrons the second has 13 and the third has 14. Which one is the most abundant?
fiasKO [112]

Answer:

12

Explanation:

If you look at the periodic table, you can see that magnesium has an atomic mass of 24.305.  Subtract the number of protons from this to get neutrons.

24.305 - 12 = 12.305

12.305 is the average amount of neutrons a magnesium atom can have.  A magnesium atom can have 12, 13, or 14 neutrons.  The average, based on the natural abundance, is 12.305.  To find which isotope is more abundant, you need to pick the number that is closest to the average.  This would make the most abundant isotope the one with 12 neutrons.

7 0
2 years ago
8KCIO3 +1C12H22011
docker41 [41]

3.2 g KClO3

Explanation:

1.1 g C12H22O11 × (1 mol C12H22O11/342.3 g C12H22O11)

= 0.0032 mol C12H22O11

0.0032 mol C12H22O11 × (8 mol KClO3/1 mol C12H22O11)

= 0.026 mol KClO3

Therefore, the minimum amount of KClO3 needed is

0.026 mol KClO3 × (122.55 g KClO3/1 mol KClO3)

= 3.2 g KClO3

5 0
2 years ago
Why is it that you might feel the effect of gravitational forces between you and the Earth, but not between you and a classmate?
Serhud [2]

Answer:

because of static energy that's why and gravity

6 0
2 years ago
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