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4 years ago

15

Which of the following molecules would have the lowest boiling point?

1 answer:

scZoUnD [109]4 years ago

4 0

The CH4 molecule has the lowest molecular weight, so it has the lowest boiling point.

Hope I helped :)

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Looking at the following equation, what coefficient should be placed in front of the H2? Fe + H2SO4 --> Fe2(SO4)3 + H2

Hatshy [7]

Answer:

3 (three)

Explanation:

2 Fe + 3H2SO4 = Fe2(SO4)3 + 3 H2 (basically just balance both sides)

6 0

3 years ago

What name should be used for the ionic compound Ga(SO)? Gallium(III) sulfide gallium(III) sulfate gallium(III) trisulfide galliu

Evgen [1.6K]

Answer: The name given to $Ga(SO_4)_3$ is Gallium (III) sulfate.

Explanation: This is an ionic compound because in aqueous solution it dissociates into its respective ions.

Naming of Ionic compounds.

Name the cation first and then write its oxidation number in roman numerical.
Then name the anion or polyatomic ions without writing any prefix of the number of atoms present in it.
The name of the anion should have a suffix '-ide' like for chlorine, the name will be chloride etc..
For polyatomic ions, the suffix used will be '-ate' like for $SO_4^{2-}$ the name will be sulfate etc..

Name of the given ionic compound is Gallium (III) Sulfate.

7 0

4 years ago

Read 2 more answers

In the wave-mechanical model of the atom, an orbital is defined as

Ne4ueva [31]

Answer:

I think its 2

4 0

4 years ago

A reaction that is second-order in one reactant has a rate constant of 1 × 10–2 L/mol · s. If the initial concentration of the r

Harlamova29_29 [7]

Answer : It take time for the concentration to become 0.180 mol/L will be, 277.8 s

Explanation :

The integrated rate law equation for second order reaction follows:

$k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)$

where,

k = rate constant = $1\times 10^{-2}mol/L.s$

t = time taken = ?

[A] = concentration of substance after time 't' = 0.180 mol/L

$[A]_o$ = Initial concentration = 0.360 mol/L

Putting values in above equation, we get:

$1\times 10^{-2}=\frac{1}{t}\left (\frac{1}{0.180}-\frac{1}{0.360}\right)$

$t=277.8s$

Hence, it take time for the concentration to become 0.180 mol/L will be, 277.8 s

7 0

4 years ago

2.1 x 10^-3 x 2 x 10^2 =

Bumek [7]

Answer:

I believe it is B

Explanation:

hope it helps. please let me know if it's wrong

4 0

3 years ago