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3 years ago

Are ionic bonds more powerful or colvant? And why do molecular compounds not have crystal lattice?

Chemistry

1 answer:

grigory [225]3 years ago

4 0

Answer:

Ionic bonds are more powerful than covalant bonds

Explanation:

This is because of their strong lattice structure formed by the attraction between metals and non-merals.

Molecules donot exhibit crystal lattices because of the covslent bonds present in between their molecules

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1) Which of the following is the smallest unit of a chemio<br> Tallest unit of a chemical element?

solong [7]

Answer:

Nanomachines will work with atoms, not nuclei. The smallest unit of a chemical element, about a third of a nanometer in diameter. Atoms make up molecules and solid objects.

Explanation:

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3 years ago

Calculate the no. of each atoms presents in 10 grams of calcium carbonate.

raketka [301]

Molar Mass of Calcium carbonate:-

$\\ \sf\longmapsto CaCO_3$

$\\ \sf\longmapsto 40u+12u+3(16u)$

$\\ \sf\longmapsto 52u+48u$

$\\ \sf\longmapsto 100u$

$\\ \sf\longmapsto 100g/mol$

Given Mass=10g

$\boxed{\sf No\:of\;moles=\dfrac{Given\:Mass}{Molar\:Mass}}$

$\\ \sf\longmapsto No\:of\;moles=\dfrac{10}{100}$

$\\ \sf\longmapsto No\:of\:moles=0.1mol$

Now

$\boxed{\sf No\:of\:molecules=No\;of\:moles\times Avagadro\: No}$

$\\ \sf\longmapsto 0.1\times 6.023\times 10^{23}$

$\\ \sf\longmapsto 6.023\times 10^{22}molecules$

8 0

3 years ago

What is the correct equilibrium constant

Ksju [112]

Answer:

(CO2)+(CF)/ (COF)².

Explanation:

6 0

3 years ago

Convey the following information in the form of balanced chemical equation:

Aliun [14]

Answer:

Carbon dioxide reacts with limewater (a solution of calcium hydroxide, Ca(OH) 2), to form a white precipitate (appears milky) of calcium carbonate, CaCO 3.

Hope it helps you! :)

6 0

3 years ago

What is the mass of substance that exactly fills a 247.2 mL container? The density of the substance is 0.81 g/mL. Give the answe

matrenka [14]

Answer:

Explanation:

The density of a substance can be found by using the formula

$Density = \frac{mass}{volume}$

Since we are finding the mass

<h3>mass = Density × volume</h3>

From the question

Density = 0.81 g/mL

volume = 247.2 mL

Substitute the values into the above formula and solve for the mass

mass = 0.81 × 247.2

= 200.232

We have the final answer as

<h3>mass = 200.23 g to 2 decimal places</h3>

Hope this helps you

3 0

3 years ago