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3 years ago

PLEASE HURRY I WILL GIVE BRAINLIEST ANSWER

Chemistry

1 answer:

marshall27 [118]3 years ago

7 0

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>_____________________________________</h2><h2>Question no 1:</h2><h3>CATION:</h3>

Cation is the postively charged unit which is formed by the transfer of one or more electrons. It is attracted towards cathode thus it is called the CATION.

<h2>_____________________________________</h2><h2>Question no 2:</h2><h3>IONIC BOND:</h3>

Ionic bond is the type of bond which is formed between the positive and negative ions. It is mostly formed between the Metals (i.e. group 1 and 2) and Non metals (i.e. mostly group 7). The positive charge on metal is due to the loosing of electron and negative charge on non metal is due to accepting the electron.

<h2>_____________________________________</h2><h2>Question no 3:</h2><h3>POLYATOMIC ION:</h3>

A molecular ion is a covalently bonded set of two or more atoms, that can be considered to behave as a single unit, it also has a charge on it.

<h2>_____________________________________</h2><h2>Question no 4:</h2><h3>CONDUCTIVITY:</h3>

Conductivity is more in liquid than in solid because the conductivity is flow of electron and the movement is less in solid than liquids thus the solid has less conductivity. The liquid has more movement of molecules due to which there is more conductivity.

<h2>_____________________________________</h2><h2>Question no 5:</h2><h3>FORMULA UNIT: </h3>

Formula unit is a emperical formula used to express the ions in ionic compounds. It is the least whole number ratio of the ions present in the ionic compound.

<h2>_____________________________________</h2><h2>Question no 6:</h2><h3>CRYSTAL LATTICE:</h3>

Crystal lattice is the arrangement of atoms, molecules, or ions of a crystal in the form of a three dimensional space lattice.

<h2>_____________________________________</h2><h2>Question no 7:</h2><h3>ANION:</h3>

Anion is the negative charged because It receives one electron from the cations thus becomes negatively charged entity. It is attracted towards the positive anode thus it is called anion.

<h2>_____________________________________</h2><h2>Question no 8:</h2><h3>MOLECULES:</h3>

Ionic bond do not form molecules, They form the ions.

<h2>_____________________________________</h2><h2>Question no 9:</h2><h3>Attraction:</h3>

One type of bonding i.e. ionic bonding is formed by the attraction between the positive and negative ions.

<h2>_____________________________________</h2><h2>Question no 10:</h2><h3>LATTICE ENERGY:</h3>

It is the amount of energy required to change the state of matter.

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2><h2 /><h3 />

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What are the empirical and molecular formulas of a hydrocarbon if combustion of 2.10 g of the compound yields 6.59 g co2 and 2.7

mariarad [96]

The empirical formula of hydrocarbon is CH2

The molecular formula of the hydrocarbon is C6H12

<u><em>Explanation</em></u>

Hydrocarbon is made up of carbon and hydrogen

<h3><u><em> </em></u>Empirical formula calculation</h3>

Step 1: find the moles CO2 and H2O

moles =mass/molar mass

moles of CO2 = 6.59 g/ 44 g/mol = 0.15 moles

moles of H2O = 2.70 g / 18 g/mol = 0.15 moles

Step 2: Find the moles ratio of Co2:H2O by diving each mole by smallest mole(0.15)

that is for CO2 = 0.15/0.15 =1

For H2O = 0.15/0.15 =1

therefore the mole ratio of Co2 : H2O = 1:1 which implies that 1 mole of Co2 and 1 mole of H2O is formed during combustion reaction.

From the the law of mass conservation the number of atoms in reactant side must be equal to number of atoms in product side

therefore since there 1 atom of C in product side there must be 1 atom of C in reactant side.

In addition there is 2 H atom in product side which should be the same in reactant side.

From information above the empirical formula is therefore = CH2

Molecular formula calculation

[CH2}n= 84 g/mol

[12+ (1x2)] n = 84 g/mol

14 n = 84 g/mol

n = 6

multiply the each subscript in CH2 by 6

Therefore the molecular formula = C6H12

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3 years ago

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Nezavi [6.7K]

Freezing point, boiling point, melting point, smell, attraction or repulsion to magnets, colour change, and many more examples.

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3 years ago

Draw a diagram using H+ signs and OH- symbols of a solution that is acidic. Hint: Use the

Dimas [21]

More positive ions shows acidic whereas more negative ions indicates basic solution.

<h3>Which charge show acidic solution?</h3>

That side which has more positive charges is considered as acidic solution while on the other hand, that region where negative charges are present in large number as compared to positive charges is considered as basic or alkaline solution.

So we can conclude that more positive ions shows acidic whereas more negative ions indicates basic solution.

Learn more about charge here: brainly.com/question/25923373

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2 years ago

Joshua dissolved sugar in water to create a sugar solution. His friend Ray tells him it’s a compound, but Joshua corrects him. W

Lady_Fox [76]

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3 years ago

Read 2 more answers

How would you prepare 1.00 L of a 0.50 M solution of each of the following?

Lunna [17]

Answer:

Take approx 41.7 mL of 12-M HCl in a 1.00-L flask and fill the rest of the volume with distilled water.

Explanation:

Hello,

In this case, for the dilution process from concentrated 12-M hydrochloric acid to 1.00 L of the diluted 0.50M hydrochloric acid, the volume of concentrated HCl you must take is computed by considering that the moles remain constant for all dilution processes as shown below:

$n_1=n_2$

Which can also be written in terms of concentrations and volumes:

$M_1V_1=M_2V_2$

Thus, solving for the initial volume or aliquot that must be taken from the 12-M HCl, we obtain:

$V_1=\frac{M_2V_2}{M_1} \\\\V_1=\frac{1.00L*0.5M}{12M}\\ \\V_1=0.0417L=41.7mL$

It means that you must take approx 41.7 mL of 12-M HCl in a 1.00-L flask and fill the rest of the volume with distilled water for such preparation.

Best regards.

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3 years ago