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3 years ago

Explain why neon is monatomic but chlorine is diatomic.

Chemistry

2 answers:

Elza [17]3 years ago

5 0

Chlorine is a halogen and all halogens and oxygen, nitrogen and hydrogen are diatomics

kirza4 [7]3 years ago

4 0

Explanation:

Neon is in group 8/0, which means that it has a full outer shell. Atoms react to get a full outer shell but as neon already has a full outer shell, it doesn't react and stays monatomic.

However, chlorine is in group 7, so it needs 1 more electron to complete its outer shell, two chlorine atom share one electron each with each other so they have full outer shells. This is why chlorine is diatomic.

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A scientist finds one carbon atom for every two oxygen atoms in a sample of compound X. For which other samples of compound X sh

amm1812

The formula or chemical formula of a compound is same irrespective of source / mode of synthesis . Thus if a sample of compound has one carbon atom for every two atoms of oxygen (CO2), the formula will remains the same

So the answer is that for all other samples the compound X should hold this ration true.

8 0

3 years ago

1 dozen apples=2.0kg whats the mass of 7 red apples

n200080 [17]

Answer:2.0x 7=14

Explanation:simce 1 dozen of apples is 2.0kg just multiply it by the 7 red apples which gives u 14 and that’s the mass of the apples

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3 years ago

3. You have 28.5 grams of Carbon. How many atoms is this?

Anton [14]

1 gram of carbon = 12 atoms ..

As per u r question..

28.5 × 12 = 342..

<h2 /><h2>If this answer helps you mark as brainlist..</h2>

6 0

3 years ago

A. Is lithium (Li) more or less reactive than beryllium (Be)?

damaskus [11]

Answer:

Li is more reactive then Be.

Explanation:

As you go to the farther left and down on the periodic table, the higher that element reactivity is.

5 0

3 years ago

Write a balanced half-reaction for the oxidation of solid manganese dioxide to permanganate ion in basic aqueous solution. Be su

AlexFokin [52]

Answer:

8 OH⁻(aq) + Mn(s) ⇒ MnO₄⁻(aq) + 4 H₂O(l) + 7 e⁻

Explanation:

Let's consider the following oxidation half-reaction that takes place in basic aqueous solution.

Mn(s) ⇒ MnO₄⁻(aq)

First, we will perform the mass balance. We will add 4 H₂O to the products side and 8 OH⁻ to the reactants side.

8 OH⁻(aq) + Mn(s) ⇒ MnO₄⁻(aq) + 4 H₂O(l)

Finally, we will perform the charge balance by adding 7 electrons to the products side.

8 OH⁻(aq) + Mn(s) ⇒ MnO₄⁻(aq) + 4 H₂O(l) + 7 e⁻

3 0

3 years ago