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g100num [7]
3 years ago
9

Elements in the same period have the same ________________________.

Chemistry
2 answers:
Anettt [7]3 years ago
4 0
They have the same number of atomic orbitals
ale4655 [162]3 years ago
3 0

Answer:

# of valence electrons

Explanation:

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Avogradro's number is the number of particles in one gram of carbon- 12 atom true or false?​
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Answer:

True

Explanation:

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro's Number (6.0221421 x 1023).

5 0
3 years ago
To produce large tomatoes that are resistant to cracking and splitting some seeds companies use the pollen from one variety of t
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cross pollination

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is when two types of plants are mixed to create a better or hardier plant

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Coefficients are used in a chemical formula to show the number of each element. True or False
ANTONII [103]

Answer:

The same number of each element present before the reaction takes place must also be present on the product side of the equation. Coefficients are placed in front of a chemical formula to show the number of moles of that substances that are necessary for the reaction to occur.

Explanation:

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3 years ago
An object's mass is less on<br> the Moon than it is on Earth.
vovikov84 [41]

Answer:

The mass of objects remains constant throughout the universe. This is because an object is made of he same amount of matter (atoms), no matter where you take it in the universe. If you take an object from the Earth to the moon, only the weight will change.

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