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1 year ago

What are some other type of chemical reactions? What makes them different?

1 answer:

8 0

Combustion, Synthesis, Decomposition, acid/ base neutralization, double displacement, single displacements.
The difference between all of this is that they don’t have the same outcome, combustion combines, synthesis comes together, decomposition breaks down, single displacement trades place, double displacement switch place,

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If an equal mass of sugar and aluminum were poured into separate containers, which would require the smaller container?

kirill115 [55]

Aluminium requires the smaller container !

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3 years ago

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Please give the answer

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D gives electrical air

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Ethanol (C 2H 6O(l), ΔH o f = -277.69 kJ/mol) can be made by reaction of ethylene (C 2H 4(g) ΔH o f = 52.26 kJ/mol) with water (

lidiya [134]

Answer:

Enthalpy change = -44.12 kJ

Explanation:

<u>Given: </u>

ΔH°f(C2H6O(l)) = -277.69 kj/mol

ΔH°f(C2H4(g)) = 52.26 kj/mol

ΔH°f(H2O) = -285.83 kj/mol

<u>To determine:</u>

Enthalpy change for the formation of C2H6O

<u>Calculation:</u>

The given reaction is:

$C2H4(g) + H2O(g)\rightarrow C2H5OH(g)$

The enthalpy change for the reaction is given as;

$\Delta H = \sum n(products)\Delta H^{0}f(products)-\sum n(reactants)\Delta H^{0}f(reactants)$

where n(products) and n(reactants) are the moles of products and reactants

Substituting the appropriate values for n and ΔH°f:

$\Delta H = 1\Delta H^{0}f(C2H6O)-[1\Delta H^{0}f(C2H4)+1\Delta H^{0}f(H2O)]$

ΔH = -277.69-(52.26-285.83) = -44.12 KJ

4 0

3 years ago

A sample of argon gas, Ar(g). is placed in a 3.80 L container at 320 K. The gas pressure is 0.496 atm.

Lilit [14]

Answer:

n = 0.072 mol

Explanation:

Given data:

Volume of gas = 3.80 L

Temperature of gas = 320 K

Pressure of gas = 0.496 atm

Number of moles of Ar gas = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K

T = temperature in kelvin

Now we will put the values.

n = PV/RT

n = 0.496 atm ×3.80 L / 0.0821 atm.L/ mol.K × 320 K

n = 1.88 /26.27 /mol

n = 0.072 mol

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3 years ago

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Calculate each of the following quantities:

morpeh [17]

Amount (mol) of solute in 145.6 L of 0.850 M sodium cyanide

<h3>What is molarity?</h3>

Molar concentration (also known as molarity, quantity concentration, or substance concentration) is a measure of the concentration of a chemical species in a solution, specifically of a solute, in terms of amount of substance per unit volume of solution. The most often used unit for molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M.

To learn more about molarity visit:

brainly.com/question/8732513

#SPJ4

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