How does temperature impact the mixture of ethanol and water?????????????

Answers

Answer 1

Answer: The temperature impact the mixture ethanol and water because of the ions that exist between them. As temperature increases, the kinetic energy of the molecules is high because there is room for movement.

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Cuantas moléculas de oxigeno se producen por la descomposición de 28.5 g de H2O2 (masa molecular = 34.0g/mol) de acuerdo a la ecuación 2H2O2(l) → 2H2O(l)+O2(g)

What is inferring means in science

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It means to conclude information from evidence and reasoning rather than from statements.

Water pollution that washes into storm sewers from many places, such as parking lots and lawns, is known as nonpoint-source pollution. True or false ?

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The statement that is given from above “Water pollution that washes into storm sewers from many places, such as parking lots and lawns, is known as nonpoint-source pollution” is true. This is difficult to treat as the source may come from different points.

What is the first step in creating a unit conversion factor?

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determining the units.

Which describes the relationship between [H+] and [OH−] ?

Answers

There are quite a fewrelationships between [H+] and [OH−]ions. And because there is a large range of number between 10 to 10-15M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, [H+][OH- ] = 10-14. From here we can derive the values of each concentration.

-log[H+ ] + -log[OH- ] = -log[10-14]
pH + pOH = 14
So pH = 14 – pOH and pOH = 14 –pH

A neutral solution occurs when pH= pOH = 7. It is an acid solution when [H+ ] > [OH- ], pH < 7 and basic when [H+ ] < [OH- ], pH> 7.

H+ is for an acid, which has a pH of 1-7. OH- is for a base, called hydroxide, and has a pH of 7-14.

pH 7 is neutral.

Sodiun atom, potassium atom, and cesium atoms have the same ?

Answers

Answer:

They have similar chemical properties

Explanation:

Hi, those elements all belong to the Group I of the periodic table meaning that they share not only similar electronic configuration (1 electron of valence) but also they have similar chemical properties, being those more marked the higher the atomic number.

An example of that shared properties is that all of them react violently with water, being cesium the most violent.

sodium atom , potassium atom and cesium atom have the same group number which is group 1

A metal, M, forms an oxide compound with the general formula M2O. In which group on the Periodic Table could metal M be found?(1) Group 1 (3) Group 16
(2) Group 2 (4) Group 17

Answers

The oxidation state of an element is calculated by subtracting and the total sum of oxidation states of all the individual atom (excluding the one that has to be calculated) from total charge on the molecule. Option (1) is correct option.

What is oxidation state?

Oxidation state of an element is a number that is assigned to an element in a molecule that represents the number of electron gained or lost during the formation of that molecule or compound. Oxidation state is a unitless quantity.

Oxidation state of M in M₂O is:

Let oxidation state of M be X

Oxidation state of Oxygen is -2

Overall charge on the molecule is 0

so 2X+(-2)=0

X=+1

So from here we can see that oxidation state of M is +1 which is possessed only by group 1 element

Hence option (1) is correct option.

To learn more about Oxidation state, here:

brainly.com/question/11313964

#SPJ2

Because the compound has a formula of M2O, the number of valence electrons of M should be 1.

Therefore, (1) Group 1 is the correct answer because elements in group 1 have 1 valence electron.

Hope this helps~

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Which of the following Group 2 elements has the lowest first ionization energy?(1) Be (3) Ca(2) Mg (4) Ba

Consider the following equation: 4NH₄ + 5O₂ → 4 NO + 6H₂O How many moles of water are produced when 2 moles of NH4 react with excess Oxygen gas?

Which of the following is a unit of density? = Mass / volumeA: liters per cubic gramB:cubic metersC:grams per cubic centimeterD:square meters