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3 years ago

Balance the equation below for the reaction between hydrogen and chlorine, using the smallest whole-number

Chemistry

1 answer:

Elanso [62]3 years ago

3 0

H2(g) + Cl2(g) = 2 HCl(aq) (balanced equation)
1, 1, 2 (coefficients)

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PLEASE HELP!! Tell me the IUPAC name of the following compounds:

leonid [27]

The IUPAC rules are

a) Find out the longest chain of carbon in the given organic compound

b) We will name the longest chain.

c) We will identify the main functional group and will assign a suffix to the compound.

d) We will number the carbons in the longest chain selected so that the attached groups attain lowest numeral as substituent

e) We will name the side groups or chains.

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3 years ago

What does electronegativity measure

Rainbow [258]

Electronegativity is a measure of an atom's ability to attract shared electrons to itself. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group.

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3 years ago

The rate constant for a certain reaction is measured at two different temperatures:

Talja [164]

Answer: The activation energy Ea for this reaction is 22689.8 J/mol

Explanation:

According to Arrhenius equation with change in temperature, the formula is as follows.

$ln \frac{k_{2}}{k_{1}} = \frac{-E_{a}}{R}[\frac{1}{T_{2}} - \frac{1}{T_{1}}]$

$k_1$ = rate constant at temperature $T_1$ = $2.3\times 10^8$

$k_2$ = rate constant at temperature $T_2$ = $4.8\times 10^8$

$E_a$ = activation energy = ?

R= gas constant = 8.314 J/kmol

$T_1$ = temperature = $280.0^0C=(273+280)=553K$

$T_2$ = temperature = $376.0^0C=(273+376)=649K$

Putting in the values ::

$ln \frac{4.8\times 10^8}{2.3\times 10^8} = \frac{-E_{a}}{8.314}[\frac{1}{649} - \frac{1}{553}]$

$E_a=22689.8J/mol$

The activation energy Ea for this reaction is 22689.8 J/mol

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3 years ago

A reaction that realeases energy in the form of heat or light.

Phantasy [73]

Exothermic reaction releases energy in the form of heat or light

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3 years ago

Read 2 more answers

If 6.0 x 10^23 atoms of aluminum weigh 27 g, calculate the mass of 1 atom of aluminum in picograms.

Georgia [21]

Answer:

$4.5 \times 10^{ - 11}$ picograms

Explanation:

Please see attached picture for full solution.

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3 years ago