What change would shift the equilibrium system to the left?

Please help me with chemistry!! with explanation so i can understand and further the knowledge

iren [92.7K]

Density= mass/volume aluminum can= 174 •g/ 4 • cm ^3. =2.76•g•cm ^-3

6 0

3 years ago

Molecules with ____________ bonds between their components will ____________ (fall apart) in water, releasing charged particles

Musya8 [376]

Molecules with ionic bonds between their components will dissociate (fall apart) in water, releasing charged particles called ions.
When the number of protons and electrons are not equal, ion is formed. There are two types of ions, Cations and anions. Cations are the positively charged ions and when an atom gains electron, Cation is formed. Anions are negatively charged ions and when an atom loses electrons, anion is formed.

8 0

3 years ago

Which ionic compound would you expect to have the highest melting point? a. Al-N b. Fe-O C. W-C

Elza [17]

Answer:

b. Fe-O

Explanation:

A way to predict melting points for ionic compounds is with electronegativity.

Electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

The most electronegativity difference (E.D.), the highest melting point, thus:

E.D. Al-N = 3,0 - 1,6 = 1,4

E.D. Fe-O = 3,5 - 1,8 = 1,7

E.D. W-C = 2,5 - 1,7 = 0,8

The most electronegativity difference is from Fe-O, thus, this ionic compound will have the highest melting point.

I hope it helps!

8 0

4 years ago

Nearly_____of the Earth is covered by water.

mario62 [17]

Answer:

im sure its 71%

Explanation:

and yes......

5 0

4 years ago

Read 2 more answers

A hydrocarbon is burnt completely to give 3.447g of

goblinko [34]

Answer: The empirical formula for the given compound is $CH_2$

Explanation:

The chemical equation for the combustion of compound having carbon, hydrogen, iron and oxygen follows:

$C_xH_y+O_2\rightarrow CO_2+H_2O$

where, 'x' and 'y' are the subscripts of carbon and hydrogen respectively.

We are given:

Mass of $CO_2=3.447g$

Mass of $H_2O=1.647g$

We know that:

Molar mass of carbon dioxide = 44 g/mol

Molar mass of water = 18 g/mol

For calculating the mass of carbon:

In 44g of carbon dioxide, 12 g of carbon is contained.

So, in 3.447 g of carbon dioxide, $\frac{12}{44}\times 3.447=0.940g$ of carbon will be contained.

For calculating the mass of hydrogen:

In 18g of water, 2 g of hydrogen is contained.

So, in 1.647 g of water, $\frac{2}{18}\times 1.647=0.183g$ of hydrogen will be contained.

To formulate the empirical formula, we need to follow some steps:

Step 1: Converting the given masses into moles.

Moles of Carbon = $\frac{\text{Given mass of Carbon}}{\text{Molar mass of Carbon}}=\frac{0.940g}{12g/mole}=0.0783moles$

Moles of Hydrogen = $\frac{\text{Given mass of Hydrogen}}{\text{Molar mass of Hydrogen}}=\frac{0.183g}{1g/mole}=0.183moles$

Step 2: Calculating the mole ratio of the given elements.

For the mole ratio, we divide each value of the moles by the smallest number of moles calculated which is 0.0783 moles.

For Carbon = $\frac{0.0783}{0.0783}=1$

For Hydrogen = $\frac{0.183}{0.0783}=2.34\approx 2$

Step 3: Taking the mole ratio as their subscripts.

The ratio of C : H = 1 : 2

Hence, the empirical formula for the given compound is $CH_2$

8 0

4 years ago