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Whitepunk [10]
3 years ago
7

Please help!!!!! Please help!!!!!

Chemistry
2 answers:
Dafna11 [192]3 years ago
5 0

A chemical bond is an attraction between two atoms.

A ionic bond is A bond formed when atoms transfer electrons.

lesantik [10]3 years ago
3 0

Answer:

1.B

2.A

3. B

Explanation:

1. A chemical bond is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing

2. so 2 is electrons of one atom are transferred permanently to another atom.meaning the answer is A

3. is When atoms combine by forming covalent bonds, the resulting collection of atoms is called a molecule. We can therefore say that a molecule is the simplest unit of a covalent compound.

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Explanation:

          ⁶⁵₃₀Ca   →   ⁶⁵₂₉Sc  +   ⁿₓH

The reaction above is nuclear reaction.

In a nuclear reaction, the mass number and atomic number must be conserved.

The mass number is the superscript before the atom

Atomic number is the subscript before the atom

  Conserving mass number:

       65 = 65 + n

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   conserving atomic number:

    30 = 29 + x

     x = 1

The unknown atom is a positron i.e a positively charged electron:   ⁰₁e

              ⁶⁵₃₀Ca   →   ⁶⁵₂₉Sc  +  ⁰₁e

learn more:

Transmutation brainly.com/question/3433940

#learnwithBrainly

3 0
3 years ago
A 1-L soda bottle contains dissolved carbon dioxide gas. Which bottle would have the highest concentration of dissolved gas? a b
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I hope that this helps you !

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Explain what happens when a cold air mass overtakes a warm air mass?
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the reactivity and the valence electrons

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8 0
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Help, please!
professor190 [17]

Hi so from what I can see the pizza as a distant or and you just have to convert the grams of glucose into moles. Most teachers ask for this format

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