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3 years ago

What is an atom for halogen

2 answers:

3 0

Halogens are a family of atoms (the penultimate column of the periodic table). They're composed of Fluorine, Bromine, Chloride, Iodine and Astatine.

NNADVOKAT [17]3 years ago

3 0

Halogen is one of the Noble Gases in the periodic table. The five poisons create Group 17 of the periodic table. Which are Fluorine, chlorine, bromine, iodine and astatine.

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Answer The number of fish that eat each type of food

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3 years ago

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Triss [41]

Answer:

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3 years ago

How many carbon dioxide (CO2) molecules are produced during the decomposition of 1.25 moles of Carbonic acid (H2CO3)? ****Rememb

Andreas93 [3]

Answer:

7.53×10²³ molecules

Explanation:

Given data:

Number of moles of carbonic acid = 1.25 mol

Number of molecules of CO₂ produced = ?

Solution:

Chemical equation:

H₂CO₃ → CO₂ + H₂O

Now we will compare the number of moles of carbonic acid with CO₂ from balanced chemical equation.

H₂CO₃ : CO₂

1 : 1

1.25 : 1.25

Number of molecules can be determine by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

Number of molecules:

1 mole = 6.022 × 10²³ molecules

1.25 mol × 6.022 × 10²³ molecules / 1 mol

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3 years ago

43. Use Table 3-1 to identify a substance that undergoes a

LuckyWell [14K]

Answer:

Oxygen, and from solid to liquid. This is because oxygen's melting point is at -218°C. Melting point refers to the temperature where heat causes particles to vibrate with sufficient energy to break the solid structure, so for oxygen this means it's being turned into a liquid.

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3 years ago

A student who is studying atomic reactions creates the following Venn diagram.

Lady bird [3.3K]

A. reaction A: chemical; reaction B: nuclear

Answer:

Solution given:

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-Releases relatively large amounts of energy

It happens on normal chemical reaction.

Circle 2: Reaction B

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-Releases relatively large amounts of energy

It happens on nuclear reaction.

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3 years ago

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