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iren [92.7K]
3 years ago
10

List two structures that have similar functions in plants and animals.how are they different

Chemistry
1 answer:
Aleks [24]3 years ago
6 0
I hope this can help you

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The melting points for the compounds li2s, rb2s, and k2s are 900°c, 530°c, and 840°c, respectively. list these three compounds i
Mila [183]

Answer: The order of increasing lattice energy is Li_2S>K_2S>Rb_2S

Explanation: Lattice energy is defined as the energy required to break the intermolecular force that is responsible for the formation of a lattice.

Melting point is defined as the temperature at which solid gets converted into liquid due to the weakening of the bonds in the solid form.

  • Relation between lattice energy and Melting point:

The relationship between these two is direct.

\text{Lattice energy}\propto \text{Melting point}

More the melting point of a compound, more will be its lattice energy.

Order of increasing Lattice energy will be:

Li_2S>K_2S>Rb_2S

7 0
3 years ago
How many moles of O2 are produced when 0.425 mol of KO2 reacts in this fashion
Oksi-84 [34.3K]
The chemical reaction is expressed as:

<span> 4KO2+2CO2→2K2CO3+3O2 
</span>
We are given the amount of KO2 to be used in the reaction. This will be the starting point of our calculations. We do as follows:

0.425 mol KO2 ( 3 mol O2 / 4 mol KO2 ) = 0.319 mol O2 produced

Hope this answers the question. Have a nice day.
4 0
3 years ago
Carbon-14 has a half-life of 5,730 years. In how many years will 120 grams of Carbon-14 decay to 15 grams? 11,460 years 17,190 y
erastova [34]
120 grams of Carbon-14 decays to 15 grams in 17,190 years.
7 0
3 years ago
1) If you have 2.6 moles of iron (III) oxide, how many molecules of iron (III)
Ugo [173]

Answer:

234

Explanation:

so 3 x 3 x 26 =234

8 0
3 years ago
What does non polar mean?
Hoochie [10]
When atoms bond together to form molecules, they share or give electrons. If the electrons are shared equally by the atoms, then there is no resulting charge and the molecule is nonpolar.
8 0
3 years ago
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