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3 years ago

What is the smallest halogen atom

Chemistry

2 answers:

ad-work [718]3 years ago

4 0

The smallest halogen atom is fluorine

Marianna [84]3 years ago

4 0

Answer:

Hey mate...

Explanation:

This is ur answer.....

This is because fluorine atoms are the smallest of the halogens—the atoms are bonded close together, which leads to repulsion between free electrons in the two fluorine atoms.

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The graph shows a student's data from an investigation about plant growth in five plants of the same type. Which is the best way

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3 years ago

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What characteristics of sodium and chlorine atoms allow them to form the stable compound sodium chloride, Also known as table sa

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Atoms 'like' to have 8 valence electrones. sodium has one electron 'in excess' and chlorine 'lacks' in one. so they just exchange :) both are happy. then the ionic bond is formed because chlorine is now charged negative (additional electron) and sodium is charged positive (gave up one electrone) - the opposite charges cause electrostatic pull. many atoms, many bonds and thats how salt is built.

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3 years ago

Present in a state where it molecules are far apart during a change of state it's molecules slow down which change of state has

blagie [28]

Answer:

The change of state that has occurred is from a gas to a liquid

Note: The question is incomplete. The complete question is given blow.

H₂O is initially present in a state where its molecules are far apart. During a change of state, its molecules slow down. Which change of state has most likely taken place?

from a gas to a liquid

from a liquid to a gas

from a solid to a liquid

from a gas to a plasma

Explanation:

Water can exists in three states: as gaseous water vapor, as liquid water, and as solid ice. Each of these states of water can be interconverted from one to another by the addition or removal of heat in a process known as change of state.

Liquid water can be converted to solid ice by the removal of heat, while solid ice ice can be converted to liquid water by the addition of heat. Also, liquid water can be converted to water vapor by the addition of heat, while water vapor can be converted to liquid water by the removal of heat.

Of the three states of water, the one in which the molecules are farthest apart is in the gaseous state. The molecules have high kinetic energy and move randomly while colliding with one another. When a heat is removed from these highly energetic molecules, the molecules slow down and lose some of their kinetic energy and a change of occurs from gaseous to liquid state.

Therefore, the change of state that occurred as described, is from gas to liquid.

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3 years ago

When potassium carbonate and calcium chromate are mixed, which of the following will pass through a filter?

aliina [53]

Calcium carbonate will be formed which is insoluble in water.

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3 years ago

Given the following equation: 2K + Cl2 -> 2KCl How many grams of KCl is produced from 4.00 g of K and excess Cl2?

Thepotemich [5.8K]

Answer:

42.65g

Explanation:

Given parameters:

Mass of K = 4g

Unknown: Mass of KCl

Solution:

Complete equation of the reaction:

2K + Cl₂ → 2KCl

To solve this problem, we know that the reactant in short supply is potassium K and this dictates the amount of products that would be formed. The chlorine gas is in excess and we can't use it to determine the amount of product that would form.

Now, we work from the known to the unknown. Since we know the mass of K given in the reaction, we can simply find the molar relationship between the reacting potassium and the product. We simply convert the mass to mole and compare to the product. From there we can find the mass of KCl that would be produced.

Calculating number of moles of K

Number of moles = $\frac{mass}{molar mass}$

Number of moles of K = $\frac{4}{39}$ = 0.103mol

From the given reaction equation:

2 moles of K will produce 2 moles of KCl

Therefore 0.103mol of K will produce 0.103mol of KCl

To find the mass of KCl produced,

Mass of KCl = number of moles of KCl x molar mass

Molar mass of KCl = 39 + 35.5 = 74.5gmol⁻¹

Mass of KCl = 0.103 x 74.5 = 42.65g

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3 years ago

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What is the smallest halogen atom​

What is the smallest halogen atom