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2 years ago

5) Chlorine has 7 valence electrons. Neon has 8 valence electrons. Which on is more likely to undergo a

Chemistry

1 answer:

kari74 [83]2 years ago

6 0

Answer:

well, chlorine will undergo in a chemical reaction

Explanation:

neon has completed valence shells, so it neither need electron and or it also don't need to donate the electrons. hence it will not participate in any chemical reaction and it is stable in nature.

whereas chlorine need one more electron to complete it's valence shell and in order to be stable , so it will try to gain one electron , hence

it will take place in a chemical reaction

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PLZZZZZZZZZZZZZZZ HELP IF RIGHT WILL GIVE BRAINLIEST

ioda

Answer:

I guess it all of these

as life cycle of an organism can be predicted and yeah it begins with birth hatching or germination for mammals, animals and plants respectively. then it's same for the organism of the same species .

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2 years ago

Crystals most often form in igneous and metamorphic rocks. According to the rock cycle, which processes and features do these ro

Zielflug [23.3K]

The features that are shared by the rocks include the melting and cooling of rocks.

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Crystals most often form in igneous and metamorphic rocks. The processes that these rocks share that likely promote the formation of crystals is the melting and cooling of rocks.

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2 years ago

What type of forces must the polar water molecules break to dissolve ethanol, C2H5OH?

ANTONII [103]

Answer:

Option B

Covalent Bonding

Explanation:

Covalent bonds in C2H5OH are formed between the carbon and hydrogen atoms, where there are shared electron pairs.

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In order for water to be able to dissolve the C2H5OH molecule, it must break the covalent bonding present in the molecule

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3 years ago

WHAT ARE THE ONLY PARTS OF AN ATOM THAT MAKE CHEMICAL BONDS?

Leno4ka [110]

Electrons are the only parts of an atom that can make a chemical bond.

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3 years ago

4. a) The enthalpy change of combustion of hexane was measured using a calorimeter containing 200 cm3 of water; 0.5g of hexane (

mamaluj [8]

Answer:

The heat of combustion of hexane is -4324kjmol-1

Explanation:

Heat of combustion is the heat evolved when a mole of a substance is burned completely in oxygen under standard conditions.

To solve this problem, all the required values have been given.

Change in temperature ΔT = 30K

Mass of water =200cm3= 200g

Mass of Hexane burned = 0.5g

Step 1:

Find the amount of hear given off

Heat evolved= mass * specific eat capacity of water* temperature change

= 200 * 4.18 * 30

= 25080J

Step 2:

Calculate the relative molecular mass of hexane

RMM of C6H14 = 86g/mole.

Step 3:

Calculate the number of moles of Hexane burned

Numbrt of mole of hexane = mass / molar mass

n = 0.5 / 86

n = 0.0058mole

Step 4:

Calculate the enthalpy change of combustion for 1mole

Combustion of 0.0058mole hexane produces 25080J of heat energy

I mole hexane produces 25080 /0.0058

= 4324kJ of heat energy.

The enthalpy change of combustion of Hexane is -4,324kJmol-1.

There is no need to do anything else for the question.

7 0

2 years ago